Risk factors for the presence of Stegomyia aegypti and Stegomyia albopictus in domestic water-holding containers in areas impacted by Nam Theun 2 Hydroelectric Project, Laos

Hiscox, A.; Kaye, A.; Vongphayloth, K.; Banks, I.; Piffer, M.; Khammanithong, P.; Sananikhom, P.; Kaul, S.; Hill, N.; Lindsay, S.W.; Brey, P.

doi:10.4269/ajtmh.12-0623

Risk factors for the presence of Stegomyia aegypti and Stegomyia albopictus in domestic water-holding containers in areas impacted by Nam Theun 2 Hydroelectric Project, Laos

Hiscox, A.; Kaye, A.; Vongphayloth, K.; Banks, I.; Piffer, M.; Khammanithong, P.; Sananikhom, P.; Kaul, S.; Hill, N.; Lindsay, S.W.; Brey, P.

Authors

A. Hiscox

A. Kaye

K. Vongphayloth

I. Banks

M. Piffer

P. Khammanithong

P. Sananikhom

S. Kaul

N. Hill

Professor Steve Lindsay s.w.lindsay@durham.ac.uk
Professor

P. Brey

Abstract

We assessed risk factors for vectors of dengue and chikungunya viruses near a new hydroelectric project, Nam Theun 2, in Laos. Immature stages of Aedes aegypti were found only in sites within 40 km of the urban provincial capital, but Aedes albopictus was found throughout. Aedes aegypti pupae were most common in water storage jars (odds ratio [OR] = 4.72) and tires (OR = 2.99), and Ae. albopictus pupae were associated with tires in 2009 (OR = 10.87) and drums, tires, and jars in 2010 (drums OR = 3.05; tires OR = 3.45, jars OR = 6.59). Compared with water storage vessels, containers used for hygiene, cooking, and drinking were 80% less likely to harborAe. albopictus pupae in 2010 (OR= 0.20), and discarded waste was associated with a 3.64 increased odds of infestation. Vector control efforts should focus on source reduction of water storage containers, particularly concrete jars and tires.

Citation

Hiscox, A., Kaye, A., Vongphayloth, K., Banks, I., Piffer, M., Khammanithong, P., …Brey, P. (2013). Risk factors for the presence of Stegomyia aegypti and Stegomyia albopictus in domestic water-holding containers in areas impacted by Nam Theun 2 Hydroelectric Project, Laos. American Journal of Tropical Medicine and Hygiene, 88(6), 1070-1078. https://doi.org/10.4269/ajtmh.12-0623

Journal Article Type	Article
Publication Date	Jun 1, 2013
Deposit Date	Jan 7, 2013
Publicly Available Date	May 27, 2014
Journal	American Journal of Tropical Medicine and Hygiene
Print ISSN	0002-9637
Publisher	American Society of Tropical Medicine and Hygiene
Peer Reviewed	Peer Reviewed
Volume	88
Issue	6
Pages	1070-1078
DOI	https://doi.org/10.4269/ajtmh.12-0623