Short Report: Adult Aedes abundance and risk of dengue transmission.

Dengue is transmitted mainly by the adult female Aedes aegypti mosquito. However, little is known about the impact of adult Aedes abundance on the risk of dengue transmission. Here we analysed nationally representative dengue case and vector surveillance data collected from Singapore, to determine t...

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Autores principales:	Janet Ong, Joel Aik, Lee Ching Ng
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270
Acceso en línea:	https://doaj.org/article/7c31a281bfa7439196253126d74c1b76
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spelling	oai:doaj.org-article:7c31a281bfa7439196253126d74c1b762021-11-25T06:33:09ZShort Report: Adult Aedes abundance and risk of dengue transmission.1935-27271935-273510.1371/journal.pntd.0009475https://doaj.org/article/7c31a281bfa7439196253126d74c1b762021-06-01T00:00:00Zhttps://doi.org/10.1371/journal.pntd.0009475https://doaj.org/toc/1935-2727https://doaj.org/toc/1935-2735Dengue is transmitted mainly by the adult female Aedes aegypti mosquito. However, little is known about the impact of adult Aedes abundance on the risk of dengue transmission. Here we analysed nationally representative dengue case and vector surveillance data collected from Singapore, to determine the effect of adult Aedes abundance on the risk of dengue transmission. A case was an area with active dengue transmission as indicated by the presence of dengue cluster. A control was an area where no dengue cluster was reported. Using multivariate logistic regression, we analysed 88 cases and 602 controls and estimated the odds of dengue cluster formation at various adult Aedes abundance levels, estimated by the mean number of adult female Aedes per Gravitrap per week and categorised into Low, Moderate, High and Very High abundance level. We found that the risk of dengue cluster formation was positively associated with adult Ae. aegypti abundance. We observed a three to four-fold increase in the odds of dengue clusters forming in areas with High (AOR: 3.40, 95% CI: 2.09, 5.52) and Very High (AOR: 3.99, 95% CI: 2.46, 6.46) adult Aedes aegypti abundance level compared to those with low Ae. aegypti abundance level. Our study strengthens the evidence for the use of adult Aedes indices for dengue risk assessment and early warning for dengue outbreaks. Entomological indicators of adult Ae. aegypti could be used to anticipate and prioritize areas for dengue control.Janet OngJoel AikLee Ching NgPublic Library of Science (PLoS)articleArctic medicine. Tropical medicineRC955-962Public aspects of medicineRA1-1270ENPLoS Neglected Tropical Diseases, Vol 15, Iss 6, p e0009475 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270
spellingShingle	Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 Janet Ong Joel Aik Lee Ching Ng Short Report: Adult Aedes abundance and risk of dengue transmission.
description	Dengue is transmitted mainly by the adult female Aedes aegypti mosquito. However, little is known about the impact of adult Aedes abundance on the risk of dengue transmission. Here we analysed nationally representative dengue case and vector surveillance data collected from Singapore, to determine the effect of adult Aedes abundance on the risk of dengue transmission. A case was an area with active dengue transmission as indicated by the presence of dengue cluster. A control was an area where no dengue cluster was reported. Using multivariate logistic regression, we analysed 88 cases and 602 controls and estimated the odds of dengue cluster formation at various adult Aedes abundance levels, estimated by the mean number of adult female Aedes per Gravitrap per week and categorised into Low, Moderate, High and Very High abundance level. We found that the risk of dengue cluster formation was positively associated with adult Ae. aegypti abundance. We observed a three to four-fold increase in the odds of dengue clusters forming in areas with High (AOR: 3.40, 95% CI: 2.09, 5.52) and Very High (AOR: 3.99, 95% CI: 2.46, 6.46) adult Aedes aegypti abundance level compared to those with low Ae. aegypti abundance level. Our study strengthens the evidence for the use of adult Aedes indices for dengue risk assessment and early warning for dengue outbreaks. Entomological indicators of adult Ae. aegypti could be used to anticipate and prioritize areas for dengue control.
format	article
author	Janet Ong Joel Aik Lee Ching Ng
author_facet	Janet Ong Joel Aik Lee Ching Ng
author_sort	Janet Ong
title	Short Report: Adult Aedes abundance and risk of dengue transmission.
title_short	Short Report: Adult Aedes abundance and risk of dengue transmission.
title_full	Short Report: Adult Aedes abundance and risk of dengue transmission.
title_fullStr	Short Report: Adult Aedes abundance and risk of dengue transmission.
title_full_unstemmed	Short Report: Adult Aedes abundance and risk of dengue transmission.
title_sort	short report: adult aedes abundance and risk of dengue transmission.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/7c31a281bfa7439196253126d74c1b76
work_keys_str_mv	AT janetong shortreportadultaedesabundanceandriskofdenguetransmission AT joelaik shortreportadultaedesabundanceandriskofdenguetransmission AT leechingng shortreportadultaedesabundanceandriskofdenguetransmission
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Short Report: Adult Aedes abundance and risk of dengue transmission.

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