{ "schemaVersion": "1.0.0", "constitutionVersion": "1.0.0", "createdAt": "2026-08-12T00:00:00Z", "description": "Append-only Evidence Passport records. Old revisions are immutable; corrections create a new revision and preserve the previous permalink.", "entity": { "type": "project", "id": "dhaka-aedes-larval-surveillance", "title": "Pre-Monsoon Aedes Larval Survey and Ward-Targeted Drives", "canonicalUrl": "https://1001smartcities.org/projects/dhaka-aedes-larval-surveillance/" }, "currentRevisionId": "2026-08-26-dhaka-baseline", "revisions": [ { "id": "2026-08-26-dhaka-baseline", "createdAt": "2026-08-26T10:00:00Z", "effectiveAt": "2026-08-26", "changeType": "baseline", "summary": "Created the first structured Evidence Passport with 16 claims and 13 source dossiers.", "preparedBy": { "type": "automation", "label": "AI-assisted evidence preparation", "humanApproved": false }, "review": { "status": "unreviewed", "by": null, "date": null, "note": "Awaiting operator and domain-expert review; publication of this revision implies neither." }, "changes": [ { "operation": "add", "path": "/evidencePassport", "summary": "Added claim-level evidence mapping and source dossiers." }, { "operation": "add", "path": "/revisionHistory", "summary": "Established a permanent, hash-addressed baseline revision." } ], "snapshotHash": "sha256:0476dc2c773d9ad088cb3964bf3f20011efb3b1afd6a4d53de55871e78817e00", "snapshot": { "asOf": "2026-08-26", "projectFingerprint": "sha256:2318e7b544bf99cf296fc02d7daf6f0490f7a4e79ecefd0eda433f3f0681da33", "assurance": { "status": "unreviewed", "scope": "evidence-passport-revision", "statement": "AI-assisted structural preparation. This revision has not been reviewed by a human or subject-matter expert.", "machineChecks": [ "schema", "publication-diff-contract", "material-project-fingerprint", "claim-text-drift", "source-reference-resolution", "complete-source-dossier", "snapshot-hash" ] }, "projectState": { "status": "live", "outcome": "ongoing", "evidenceGrade": "official", "timeline": { "started": null, "ended": null } }, "governance": { "operator": "Dhaka South City Corporation and Dhaka North City Corporation, with the Communicable Disease Control programme of the Directorate General of Health Services (DGHS) and the Institute of Epidemiology, Disease Control and Research (IEDCR)", "actorTypes": [ "city-government", "national-government" ], "fundingModel": "public", "fundingDescription": null, "cost": null, "ownership": null, "decisionRights": null, "exitConditions": null }, "claims": [ { "id": "clm-f832bb3df60db1c5", "field": "snippet", "text": "Dhaka's two city corporations choose where to send mosquito crews from a larval index", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-aae73327944e038a", "src-885b6c6991c3fe6c" ], "supportNote": "BSS on Dhaka South: 'Based on the findings, DSCC has decided to launch a special crash program in these most affected areas.' BSS on Dhaka North: the 53 Saturday campaigns run in the 25 wards that 'have been identified as most vulnerable to Aedes mosquitoes' by IEDCR and DGHS surveys. Two corporations, two survey sources, the same rule for choosing where crews go.", "caveat": "The rule is not exclusive. A seven-day crash programme announced for Kamrangirchar on 31 July 2026 was declared after Friday prayers with no survey cited, so some drives are selected another way.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-d0713d216c18c1ed", "field": "snippet", "text": "Surveyors sample households ward by ward and score each ward on the Breteau Index — positive containers per 100 houses inspected, where anything above 20 is treated as the danger line", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-6bf9d9f1f109306a" ], "supportNote": "Verbatim: 'Aedes larvae density is measured using the Breteau Index (BI), which assesses the number of positive containers per 100 houses inspected. A BI over 20 indicates an uncontrollable situation and a heightened risk of a dengue outbreak, according to global standards.' The same piece reports the survey covering 99 wards of the two corporations and lists each qualifying ward with its own index value.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-61b85c2a44825ae7", "field": "snippet", "text": "alongside the House, Container and Pupa indices", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-aae73327944e038a" ], "supportNote": "Verbatim: 'The survey results were analyzed using key entomological indicators, including the Breteau Index (BI), House Index (HI), Container Index (CI) and Pupa Index (PI), providing a scientific assessment of mosquito breeding density and dengue risk across different areas.'", "caveat": "Only the Breteau values are reported publicly ward by ward; the House, Container and Pupa values for individual wards were not published in any source read.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-296a233485b4a43d", "field": "snippet", "text": "Dhaka South City Corporation ran the survey under its own management for the first time in May 2026", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-968ce8f31b617f65", "src-f50025e006b4731f" ], "supportNote": "BSS on the inauguration day, 10 May 2026: 'Dhaka South City Corporation (DSCC) today launched a scientific pre-monsoon survey on Aedes mosquito larvae under its own management for the first time'. The administrator is quoted saying 'For the first time, we are conducting this survey independently using scientific methods.' Restated three months later in the government's own account of the season.", "caveat": "First time under DSCC's own management, not the first survey. Ward-level Aedes surveys of both corporations were being run by the national health directorate well before this.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-6f46f359b8009750", "field": "snippet", "text": "36 field workers, 2,250 households, thirty in each of its 75 wards, twelve days, recorded on the KoboToolbox platform", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-968ce8f31b617f65", "src-aae73327944e038a", "src-77dd02cbbf14246a" ], "supportNote": "BSS launch piece: '2,250 houses have been selected as samples, with 30 houses chosen from each of the corporation's 75 wards. The 12-day survey is being conducted through random sampling by 36 field workers from DSCC and the Communicable Disease Control wing of the Directorate General of Health Services (DGHS). The digital platform \"KoboToolbox\" is being used'. BSS results piece repeats it, and The Daily Star independently reports the 36-member team, the 2,250 households and KoboToolbox.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-69b2ffdd69697729", "field": "impact", "text": "The May 2026 round found Aedes larvae or pupae in 281 of the 2,238 households inspected", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-aae73327944e038a" ], "supportNote": "Verbatim: 'During the survey, inspectors visited 2,238 households and detected Aedes larvae and pupae in 281 of them.'", "caveat": "The sample was designed as 2,250 households; 2,238 were actually visited. No source explains the twelve-household difference.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-b14c160d5d458137", "field": "impact", "text": "put 63 of Dhaka South's 75 wards above the threshold, 27 of them at extreme risk", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-77dd02cbbf14246a", "src-aae73327944e038a", "src-1dea4ab6ca1b292b" ], "supportNote": "The Daily Star: 'Among the 75 wards under Dhaka South City Corporation, 63 were found to have Aedes mosquito densities above the prescribed threshold, while 27 have been identified as being at extreme risk of dengue transmission.' Prothom Alo, three weeks later and independently: 'In Dhaka South City Corporation's pre-monsoon survey, 63 of its 75 wards recorded Breteau Index values above 20. Among them, officials identified 27 wards as \"extremely high-risk\".'", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-64646330d6a738ab", "field": "impact", "text": "35.23 per cent of the infested premises were multi-storey buildings", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-aae73327944e038a" ], "supportNote": "Verbatim: 'Multi-story buildings accounted for the highest proportion of infested premises at 35.23 percent.' The same source draws the conclusion that dengue risk is no longer confined to low-income neighbourhoods.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-588d5e7f02fdb1bd", "field": "impact", "text": "Dhaka South ran a five-day crash programme in those 27 wards from 7 June and said it would extend it to the 36 moderately risky wards the following week", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-aae73327944e038a", "src-77dd02cbbf14246a" ], "supportNote": "BSS: 'The most important of these is a five-day special crash program in the 27 high-risk wards beginning on June 7' and 'Salam said similar operations would also be conducted in another 36 moderately risky wards during the following week.' The Daily Star reports the same plan and adds that Health and Waste Management jointly coordinate it.", "caveat": "Both sources describe the programme as announced and beginning; neither reports afterwards on whether the five days were completed in all 27 wards or whether the extension to the 36 wards happened.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-d94fb83f51a20253", "field": "impact", "text": "Dhaka North had announced 53 Saturday cleanup drives between March and May in the 25 wards that IEDCR and health directorate surveys named as most vulnerable", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-885b6c6991c3fe6c" ], "supportNote": "Verbatim: 'According to surveys conducted by the Institute of Epidemiology, Disease Control and Research (IEDCR) and the Directorate General of Health Services, 25 wards of DNCC have been identified as most vulnerable to Aedes mosquitoes. In these 25 high-risk wards, a total of 53 campaigns under the \"Saturday's Pledge - Let's Keep Our Homes Clean\" initiative will be conducted from March to May every Saturday from 8 am to 12 noon.'", "caveat": "The source is an announcement made the day before the campaign began, so 53 is the planned count. No source read reports how many of the 53 actually ran.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-83805dd032cf7b3b", "field": "impact", "text": "its own survey in mid-June recorded Breteau values from 20 to 73.33 across five high-risk areas", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-1dea4ab6ca1b292b" ], "supportNote": "Verbatim: 'During the latest mosquito surveillance conducted by Dhaka North City Corporation between 12 and 16 June, officials found alarming concentrations of larvae at breeding sites... Surveys in five high-risk areas of the city recorded Breteau Index values ranging from 20 to 73.33, with an average BI exceeding 40.'", "caveat": "Five areas, not a full ward-by-ward round; the source does not say how the five were chosen, and DNCC's chief health officer is quoted in the same piece saying he does not believe the situation has yet reached a critical stage.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-01aab604e0df9b14", "field": "impact", "text": "Entomologists say there is no field-level survey to assess whether the control effort works", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-3972ac5119d0c41d" ], "supportNote": "Manjur A Chowdhury, former president of the Bangladesh Zoological Society, told The Business Standard: 'There is no field-level survey to assess whether the dengue control efforts are effective. According to our research, less than 10% of mosquitoes are killed after fogging.'", "caveat": "The statement dates from October 2024, before Dhaka South began running its own survey. No later source read contradicts it, and none reports an evaluation of the drives either.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-733d210861222524", "field": "lesson", "text": "the ward at the top of the index is the ward the crews are sent to, and Dhaka South calls that a survey-based, data-driven strategy rather than routine mosquito control", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-aae73327944e038a" ], "supportNote": "Verbatim: 'He added that, instead of relying solely on routine mosquito control measures, DSCC is implementing a survey-based, data-driven strategy to ensure rapid and effective interventions in high-risk areas.' The description is the DSCC administrator's own.", "caveat": "This is the operator's characterisation of its own practice; nobody outside the corporation has assessed whether the drives follow the ward ranking in the field.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-bc4e87f4d5ae7dd5", "field": "lesson", "text": "Dhaka South's own chief health officer was worried enough in February 2026 to convene a committee — chaired by the waste chief and deliberately excluding health department officials — to establish whether the insecticides kill anything in the field", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-f14e67f119bc8f47" ], "supportNote": "Prothom Alo: 'DSCC chief health officer Jahan-e-Ferdous Binte Rahman said she herself is concerned about mosquito infestation around her residence in the Bailey Road area, despite regular spraying. This concern prompted the formation of the committee to evaluate insecticide effectiveness... To ensure neutrality, no health department officials have been included in the committee. Instead, the chief waste management officer of DSCC has been appointed as its head.' The same piece records that laboratory tests show the insecticides effective while field results do not follow.", "caveat": "The committee was said to be reporting soon in February 2026; no source read reports its findings.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-1dc9e2f84e713ae6", "field": "lesson", "text": "the national dengue dashboard breaks its case counts down to the two city corporations and no further", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-67fffd5b9de5baf2" ], "supportNote": "The dashboard's own section headings are the finest geography it offers: 'Division & City corporation wise reported cases from 1 January to till date', 'Affected cases within City corporation from 01 January to till date' and 'Affected cases outside of City corporation from 01 January to till date'. There is no ward-level view, so the daily case data cannot be joined to the ward larval index.", "caveat": "Read from the live dashboard on 27 August 2026. A dashboard can gain a view later; the claim describes what it offered when read.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-3d7d93522c034faf", "field": "lesson", "text": "a peer-reviewed study of the 2023 outbreak found captured only cases reported in government-approved hospitals, with the true total estimated at four times the reported one", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-695b76b1650e9399", "src-184b06be238f6027" ], "supportNote": "Open Forum Infectious Diseases, verbatim: 'As the surveillance included only cases reported in government-approved hospitals, we noticed a significant underreporting of cases of dengue. At present, the estimated number of dengue cases will be 4 times greater than the reported number.' The government's own workshop record makes the same point in its own words, recording Prof. Rashedul Islam's statement that current dengue surveillance is hospital-based and his call for disease hotspots to be identified.", "caveat": "The four-times estimate is the study's own for the 2023 outbreak nationally; it is not a Dhaka-specific multiplier and should not be applied to a city corporation figure.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } } ], "sources": [ { "id": "src-968ce8f31b617f65", "title": "BSS — DSCC launches its own pre-monsoon Aedes larvae survey (state news agency)", "url": "https://www.bssnews.net/others/385913", "publisher": { "name": null, "domain": "bssnews.net", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-296a233485b4a43d", "clm-6f46f359b8009750" ], "temporal": { "publishedAt": "2026-05-10", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-08-26", "dossierCreatedAt": "2026-08-26", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Bangladesh's state news agency on the day DSCC inaugurated the survey. States that DSCC ran a scientific pre-monsoon Aedes larvae survey under its own management for the first time, and gives the method: 2,250 sample houses, 30 from each of the corporation's 75 wards, a 12-day survey by 36 field workers drawn from DSCC and the Communicable Disease Control wing of DGHS, with data collected on KoboToolbox.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-aae73327944e038a", "title": "BSS — DSCC launches crash programme in 27 high-risk wards (state news agency)", "url": "https://www.bssnews.net/special-stories/392989", "publisher": { "name": null, "domain": "bssnews.net", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-f832bb3df60db1c5", "clm-61b85c2a44825ae7", "clm-6f46f359b8009750", "clm-69b2ffdd69697729", "clm-b14c160d5d458137", "clm-64646330d6a738ab", "clm-588d5e7f02fdb1bd", "clm-733d210861222524" ], "temporal": { "publishedAt": "2026-06-06", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-08-26", "dossierCreatedAt": "2026-08-26", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "The results and the response in one piece. Carries the survey dates (12 to 23 May), the four entomological indicators used (Breteau, House, Container and Pupa), 63 of 75 wards above the threshold with 27 highly vulnerable, 281 infested households out of 2,238 visited, 35.23 per cent of them multi-storey, and the five-day crash programme in the 27 high-risk wards from 7 June extending to 36 moderately risky wards the week after. Quotes the DSCC administrator describing a survey-based, data-driven strategy rather than routine mosquito control.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-77dd02cbbf14246a", "title": "The Daily Star — 63 of 75 DSCC wards at dengue risk (media)", "url": "https://www.thedailystar.net/news/bangladesh/news/63-75-dscc-wards-dengue-risk-4191106", "publisher": { "name": null, "domain": "thedailystar.net", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-6f46f359b8009750", "clm-b14c160d5d458137", "clm-588d5e7f02fdb1bd" ], "temporal": { "publishedAt": "2026-06-05", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-08-26", "dossierCreatedAt": "2026-08-26", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Independent daily reporting the same announcement, made at a DSCC event titled 'Presentation of Pre-Monsoon Aedes Larvae Survey Results and Action Plan'. Confirms the 36-member joint DSCC/DGHS team, the 2,250 households, KoboToolbox, the 63/27 ward split and the crash programme, and adds that the programme is jointly coordinated by DSCC's Health Department and Waste Management Department.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-6bf9d9f1f109306a", "title": "The Daily Star — 13 Dhaka wards at high risk, DGHS/IEDCR pre-monsoon survey (media)", "url": "https://www.thedailystar.net/news/bangladesh/news/dengue-infection-13-dhaka-wards-high-risk-3920606", "publisher": { "name": null, "domain": "thedailystar.net", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-d0713d216c18c1ed" ], "temporal": { "publishedAt": "2025-06-18", "updatedAt": "2025-06-19", "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-08-26", "dossierCreatedAt": "2026-08-26", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "The national version of the same instrument a year earlier: a pre-monsoon survey run jointly by the DGHS Communicable Disease Control programme and IEDCR across 99 wards of the two corporations in February, March and May 2025. Defines the Breteau Index as positive containers per 100 houses inspected and gives 20 as the threshold above which the situation is treated as uncontrollable. Lists the 13 wards that exceeded it with their individual index values, and records that the report urged a year-round larvicidal programme in wards with a high Breteau and House Index.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-885b6c6991c3fe6c", "title": "BSS — DNCC launches Saturday mosquito control campaign in 25 high-risk wards (state news agency)", "url": "https://www.bssnews.net/others/368576", "publisher": { "name": null, "domain": "bssnews.net", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-f832bb3df60db1c5", "clm-d94fb83f51a20253" ], "temporal": { "publishedAt": "2026-03-13", "updatedAt": "2026-03-14", "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-08-26", "dossierCreatedAt": "2026-08-26", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "The Dhaka North half of the same mechanism. States that IEDCR and DGHS surveys identified 25 DNCC wards as most vulnerable to Aedes mosquitoes, and that 53 'Saturday's Pledge' campaigns would run in those 25 wards from March to May, every Saturday from 8am to noon, jointly by DNCC's Health and Waste Management departments with the corporation's entomologists.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-1dea4ab6ca1b292b", "title": "Prothom Alo — High levels of Aedes larvae in Dhaka, higher outside (media)", "url": "https://en.prothomalo.com/bangladesh/ejj9w4y0d3", "publisher": { "name": null, "domain": "en.prothomalo.com", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-b14c160d5d458137", "clm-83805dd032cf7b3b" ], "temporal": { "publishedAt": "2026-06-30", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-08-26", "dossierCreatedAt": "2026-08-26", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Independent confirmation of the DSCC 63/27 result and the source for Dhaka North's own surveillance round of 12 to 16 June 2026, which recorded Breteau values from 20 to 73.33 across five high-risk areas with an average above 40. Quotes DNCC's chief health officer. Also carries larval densities from outside Dhaka that are higher than the capital's, which is why the entry does not claim Dhaka is the worst-affected place.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-f14e67f119bc8f47", "title": "Prothom Alo — Mosquitoes not dying despite drives, committee formed (media)", "url": "https://en.prothomalo.com/bangladesh/city/6gknsu9myd", "publisher": { "name": null, "domain": "en.prothomalo.com", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-bc4e87f4d5ae7dd5" ], "temporal": { "publishedAt": "2026-02-20", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-08-26", "dossierCreatedAt": "2026-08-26", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "The operator auditing itself. DSCC's chief health officer prompted the formation of a committee to establish whether the insecticides actually kill mosquitoes in the field; to keep it neutral, no health department officials sit on it and the chief waste management officer chairs it. Also gives the staffing rule (seven larvicide workers per ward in the morning, six fogging in the afternoon, 1,030 workers in total) and a reporter's two-hour tour of Ward 20 that found none of them.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-3972ac5119d0c41d", "title": "The Business Standard — Are city corporations' anti-mosquito drives effective? (media)", "url": "https://www.tbsnews.net/bangladesh/health/dengue-spreading-are-city-corporations-anti-mosquito-drives-effective-968021", "publisher": { "name": null, "domain": "tbsnews.net", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-01aab604e0df9b14" ], "temporal": { "publishedAt": "2024-10-16", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-08-26", "dossierCreatedAt": "2026-08-26", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Independent entomologists on the missing half of the loop. Manjur A Chowdhury, former president of the Bangladesh Zoological Society, states there is no field-level survey to assess whether the dengue control efforts are effective, and that fewer than one in ten mosquitoes die after fogging. GM Saifur Rahman argues the effort lacks centralised data on which areas hold the most Aedes and where patients come from.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-f50025e006b4731f", "title": "The Business Standard / BSS — Govt's preventive steps help keep dengue situation under control (state news agency)", "url": "https://www.tbsnews.net/bangladesh/health/govts-preventive-steps-help-keep-dengue-situation-under-control-1516201", "publisher": { "name": null, "domain": "tbsnews.net", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-296a233485b4a43d" ], "temporal": { "publishedAt": "2026-08-16", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-08-26", "dossierCreatedAt": "2026-08-26", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Currency check, and the most recent confirmation that DSCC ran the pre-monsoon larva survey under its own management for the first time this year. Also records that DNCC's distinctive contribution this season was an awareness campaign built on music, and gives DGHS national case and death totals to 13 August for 2026 against 2025 — national figures, not Dhaka ones.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-695b76b1650e9399", "title": "Open Forum Infectious Diseases — The Epidemiologic and Clinical Characteristics of the 2023 Dengue Outbreak in Bangladesh (peer-reviewed)", "url": "https://academic.oup.com/ofid/article/11/2/ofae066/7596604", "publisher": { "name": null, "domain": "academic.oup.com", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-3d7d93522c034faf" ], "temporal": { "publishedAt": "2024-02-01", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-08-26", "dossierCreatedAt": "2026-08-26", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Peer-reviewed analysis of the 2023 outbreak, used only for what the national case count is and is not. States that because surveillance included only cases reported in government-approved hospitals there was significant underreporting, and that the estimated number of dengue cases is four times greater than the reported number. Date taken from Crossref (issued 2024-02-01; online 2024-02-02) for DOI 10.1093/ofid/ofae066.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-67fffd5b9de5baf2", "title": "DGHS — Dengue Dynamic Dashboard for Bangladesh (authority)", "url": "https://dashboard.dghs.gov.bd/pages/heoc_dengue_v1.php", "publisher": { "name": null, "domain": "dashboard.dghs.gov.bd", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-1dc9e2f84e713ae6" ], "temporal": { "publishedAt": null, "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-08-26", "dossierCreatedAt": "2026-08-26", "retrievedAt": null, "status": "record-date-only" }, "locator": { "type": "descriptive-source-note", "value": "The live national dengue dashboard run by the DGHS Health Emergency Operation Centre and Control Room, updated daily from the dengue press release. Its geography stops at the division and city-corporation level — cases and deaths by division and city corporation, and separate totals for cases inside and outside city corporations — with no ward breakdown, which is why the case data cannot be laid over the ward larval index. A live dashboard states no publication date.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-184b06be238f6027", "title": "Local Government Division — Immediate Action Plan to Prevent Dengue Outbreak in Bangladesh, workshop report (authority)", "url": "https://objectstorage.ap-dcc-gazipur-1.oraclecloud15.com/n/axvjbnqprylg/b/V2Ministry/o/office-iuphpsp-lgd/2024/12/9277ce36bd344df194167b40fb469fea.pdf", "publisher": { "name": null, "domain": "objectstorage.ap-dcc-gazipur-1.oraclecloud15.com", "classification": "not-classified" }, "sourceType": "pdf", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-3d7d93522c034faf" ], "temporal": { "publishedAt": null, "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-08-26", "dossierCreatedAt": "2026-08-26", "retrievedAt": null, "status": "record-date-only" }, "locator": { "type": "descriptive-source-note", "value": "The government's own record of a multi-stakeholder dengue workshop convened by the Local Government Division under the World Bank-supported Improving Urban Public Health Services Project. Names the gaps in the government's own words: incomplete disease surveillance data limiting timely decision-making, absence of baseline data on vector populations and no sentinel surveillance system, a shortage of trained entomologists, and — from Prof. Rashedul Islam — that current dengue surveillance is hospital-based. Hosted on the ministry's object storage; the document itself states no date, and the year and month in the storage path are an upload path, not a publication date.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-d952ad30420063d4", "title": "Gavi VaccinesWork — Bangladesh has a dengue-fighting mobile app (media)", "url": "https://www.gavi.org/vaccineswork/bangladesh-has-dengue-fighting-mobile-app", "publisher": { "name": null, "domain": "gavi.org", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "background", "claimRefs": [], "temporal": { "publishedAt": "2026-04-28", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-08-26", "dossierCreatedAt": "2026-08-26", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Carries the DGHS entomologist's statement that the Aedes surveys are conducted in Dhaka at pre-monsoon, monsoon and post-monsoon, which establishes the cadence. Also the honest measure of the separate citizen-science app: Mosquito Alert, rolled out by the research institute icddr,b in September 2025, had 227 participants by mid-April 2026 and its scientist describes the operation as limited in scale for lack of manpower and logistics.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } } ], "coverage": { "claimsTotal": 16, "claimsMapped": 16, "sourcesTotal": 13, "sourcesUsedByClaims": 12, "sourcesWithPublicationDate": 11, "sourcesWithArchive": 0, "sourcesWithExactLocator": 0, "sourcesWithContentHash": 0 }, "limits": [ "Publisher names and source languages have not yet been classified; domains are recorded without guessing.", "Existing source notes are descriptive locators, not page- or paragraph-exact citations.", "A missing archive, publication date or content hash is shown as null rather than inferred.", "The project-level evidence grade ranks the strongest source in the entry; it is not a truth score for every claim." ] } } ] }