2026-10-06T18:14:43Z https://api.figshare.com/v2/oai

oai:figshare.com:article/34049975 2026-10-01T17:54:20Z category_7 category_272 category_39 category_45 category_734 category_106 portal_5 item_type_6 month_year_10_2026

Timeline of data collection activities. Eimear Griffin (25158119) Thiago da Mata Barreto (25158122) Zoe Ward (4020248) Juliet Oliveira Santana (21615940) Hussein Khalil (659056) Mike Begon (199882) Mitermayer Galvão G. Reis (25158125) Cleber Cremonese (7888898) Federico Costa (569693) Hernan D. Argibay (15422530) Guy Howard (4117807) Medicine Environmental Sciences not elsewhere classified Ecology Sociology Biological Sciences not elsewhere classified Science Policy systematic sampling approach significant spatial clustering poor sanitation conditions inform integrated strategies improving waste disposal div >< p arboviral disease transmission 6 %) indoor 0 %) outdoor water storage practices spatial distribution within open plastic containers findings provide evidence limited vector control identify key environmental disadvantaged communities characterised combining household surveys 303 recovered ovitraps mosquito egg density aedes aegypti </ vector control disadvantaged communities within 10 standing water provide insights open sewer mosquito density aegypti </ vegetation coverage urban environments tropical cities study area study aimed remote sensing oviposition preferences led interventions landscape features landcover classification household factors highly susceptible guiding community garbage deposited entomological survey entomological assessments <div>Disadvantaged communities characterised by poor sanitation conditions, overcrowding, and limited vector control are highly susceptible to Aedes aegypti proliferation and arboviral disease transmission. Effective mosquito vector control requires a detailed understanding of Ae. aegypti oviposition preferences and spatial distribution within such urban environments. This study aimed to identify key environmental and behavioural drivers of Ae. aegypti proliferation in disadvantaged communities of Salvador, Brazil, combining household surveys, entomological assessments, and remote sensing to guide targeted public health interventions. Between March and December 2023, using a systematic sampling approach, an entomological survey was conducted in 174 households, alongside a socio-demographic and environmental visual inspection survey in 119 households within two disadvantaged communities of Salvador. Ovitraps were used to collect Ae. aegypti eggs and immatures, providing a detailed assessment of mosquito density. The visual inspection survey identified potential breeding sites (sources of standing water) for Ae. aegypti in the peri-domestic environment. Landcover classification was performed to provide insights into vegetation coverage and other landscape features in the study area. Multivariate modelling explored associations between environmental and household factors, and Ae. aegypti density. Of the 303 recovered ovitraps, 85 (55.6%) indoor and 123 (82.0%) outdoor were positive for eggs, with a total of 11,211 Ae. aegypti eggs recorded. Environmental factors strongly associated with egg abundance included ovitrap location, garbage deposited in front of the house, proximity (within 10 m) to an open sewer, and the presence of open plastic containers in the peri-domestic environment. No significant spatial clustering of mosquito egg density was observed. Breeding was most prolific in the peri-domestic environment, highlighting the importance of keeping these areas clean and well-managed. Improving waste disposal, water storage practices, and sanitation infrastructure could enhance the effectiveness of vector control. These findings provide evidence to inform integrated strategies for reducing arboviral disease risk in disadvantaged urban settings.</div> 2026-10-01T18:02:04Z Text Journal contribution 10.1371/journal.pntd.0014728.s001 https://figshare.com/articles/journal_contribution/_p_Timeline_of_data_collection_activities_p_/34049975 CC BY 4.0