Entomologic and Virologic Investigation of Chikungunya, Singapore

Local transmission of chikungunya, a debilitating mosquito-borne viral disease, was first reported in Singapore in January 2008. After 3 months of absence, locally acquired Chikungunya cases resurfaced in May 2008, causing an outbreak that resulted in a total of 231 cases by September 2008. The circ...

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Main Authors: Lee-Ching Ng, Li-Kiang Tan, Cheong-Huat Tan, Sharon S.Y. Tan, Hapuarachchige C. Hapuarachchi, Kwoon-Yong Pok, Yee-Ling Lai, Sai-Gek Lam-Phua, Göran Bucht, Raymond T.P. Lin, Yee-Sin Leo, Boon-Hian Tan, Hwi-Kwang Han, Peng-Lim S Ooi, Lyn James, Seow-Poh Khoo
Format: Article
Language:English
Published: Centers for Disease Control and Prevention 2009-08-01
Series:Emerging Infectious Diseases
Subjects:
Online Access:https://wwwnc.cdc.gov/eid/article/15/8/08-1486_article
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author Lee-Ching Ng
Li-Kiang Tan
Cheong-Huat Tan
Sharon S.Y. Tan
Hapuarachchige C. Hapuarachchi
Kwoon-Yong Pok
Yee-Ling Lai
Sai-Gek Lam-Phua
Göran Bucht
Raymond T.P. Lin
Yee-Sin Leo
Boon-Hian Tan
Hwi-Kwang Han
Peng-Lim S Ooi
Lyn James
Seow-Poh Khoo
author_facet Lee-Ching Ng
Li-Kiang Tan
Cheong-Huat Tan
Sharon S.Y. Tan
Hapuarachchige C. Hapuarachchi
Kwoon-Yong Pok
Yee-Ling Lai
Sai-Gek Lam-Phua
Göran Bucht
Raymond T.P. Lin
Yee-Sin Leo
Boon-Hian Tan
Hwi-Kwang Han
Peng-Lim S Ooi
Lyn James
Seow-Poh Khoo
author_sort Lee-Ching Ng
collection DOAJ
description Local transmission of chikungunya, a debilitating mosquito-borne viral disease, was first reported in Singapore in January 2008. After 3 months of absence, locally acquired Chikungunya cases resurfaced in May 2008, causing an outbreak that resulted in a total of 231 cases by September 2008. The circulating viruses were related to East, Central, and South African genotypes that emerged in the Indian Ocean region in 2005. The first local outbreak was due to a wild-type virus (alanine at codon 226 of the envelope 1 gene) and occurred in an area where Aedes aegypti mosquitoes were the primary vector. Strains isolated during subsequent outbreaks showed alanine to valine substitution (A226V) and largely spread in areas predominated by Ae. albopictus mosquitoes. These findings led to a revision of the current vector control strategy in Singapore. This report highlights the use of entomologic and virologic data to assist in the control of chikungunya in disease-endemic areas.
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spelling doaj.art-73cfecd800c04ca880537317710bc2722022-12-22T03:43:31ZengCenters for Disease Control and PreventionEmerging Infectious Diseases1080-60401080-60592009-08-011581243124910.3201/eid1508.081486Entomologic and Virologic Investigation of Chikungunya, SingaporeLee-Ching NgLi-Kiang TanCheong-Huat TanSharon S.Y. TanHapuarachchige C. HapuarachchiKwoon-Yong PokYee-Ling LaiSai-Gek Lam-PhuaGöran BuchtRaymond T.P. LinYee-Sin LeoBoon-Hian TanHwi-Kwang HanPeng-Lim S OoiLyn JamesSeow-Poh KhooLocal transmission of chikungunya, a debilitating mosquito-borne viral disease, was first reported in Singapore in January 2008. After 3 months of absence, locally acquired Chikungunya cases resurfaced in May 2008, causing an outbreak that resulted in a total of 231 cases by September 2008. The circulating viruses were related to East, Central, and South African genotypes that emerged in the Indian Ocean region in 2005. The first local outbreak was due to a wild-type virus (alanine at codon 226 of the envelope 1 gene) and occurred in an area where Aedes aegypti mosquitoes were the primary vector. Strains isolated during subsequent outbreaks showed alanine to valine substitution (A226V) and largely spread in areas predominated by Ae. albopictus mosquitoes. These findings led to a revision of the current vector control strategy in Singapore. This report highlights the use of entomologic and virologic data to assist in the control of chikungunya in disease-endemic areas.https://wwwnc.cdc.gov/eid/article/15/8/08-1486_articleChikungunyachikungunya virussurveillanceentomologyvirologysequencing
spellingShingle Lee-Ching Ng
Li-Kiang Tan
Cheong-Huat Tan
Sharon S.Y. Tan
Hapuarachchige C. Hapuarachchi
Kwoon-Yong Pok
Yee-Ling Lai
Sai-Gek Lam-Phua
Göran Bucht
Raymond T.P. Lin
Yee-Sin Leo
Boon-Hian Tan
Hwi-Kwang Han
Peng-Lim S Ooi
Lyn James
Seow-Poh Khoo
Entomologic and Virologic Investigation of Chikungunya, Singapore
Emerging Infectious Diseases
Chikungunya
chikungunya virus
surveillance
entomology
virology
sequencing
title Entomologic and Virologic Investigation of Chikungunya, Singapore
title_full Entomologic and Virologic Investigation of Chikungunya, Singapore
title_fullStr Entomologic and Virologic Investigation of Chikungunya, Singapore
title_full_unstemmed Entomologic and Virologic Investigation of Chikungunya, Singapore
title_short Entomologic and Virologic Investigation of Chikungunya, Singapore
title_sort entomologic and virologic investigation of chikungunya singapore
topic Chikungunya
chikungunya virus
surveillance
entomology
virology
sequencing
url https://wwwnc.cdc.gov/eid/article/15/8/08-1486_article
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