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Heavy natural oocyst infections in Anopheles dirus (Diptera: Culicidae) from Attapeu Province, Lao PDR

Published online by Cambridge University Press:  28 February 2007

I. Vythilingam ,
B. Sidavong ,
S.T. Chan ,
T. Phonemixay ,
R. Phetsouvanh  and
S. Phompida
I. Vythilingam*
Affiliation:
Infectious Disease Research Centre, Institute for Medical Research, Jalan Pahang, 50588, Kuala Lumpur, Malaysia
B. Sidavong
Affiliation:
Centre for Malaria, Parasitology and Entomology, Vientiane, Lao PDR
S.T. Chan
Affiliation:
Infectious Disease Research Centre, Institute for Medical Research, Jalan Pahang, 50588, Kuala Lumpur, Malaysia
T. Phonemixay
Affiliation:
Centre for Malaria, Parasitology and Entomology, Vientiane, Lao PDR
R. Phetsouvanh
Affiliation:
Centre for Malaria, Parasitology and Entomology, Vientiane, Lao PDR
S. Phompida
Affiliation:
Centre for Malaria, Parasitology and Entomology, Vientiane, Lao PDR
*
*Email: indra@imr.gov.my
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Abstract

This note reports an unusual case of a high number of oocysts found by dissecting the midgut of Anopheles dirus Peyton & Harrison from Laos, where dissections have not been carried out for many decades. In dissected samples, the number of oocysts ranged from 1 to 250 and tests carried out on the heads and thoraces of A. dirus using the ELISA method were positive for Plasmodium falciparum.

Keywords

Anopheles dirusoocystsdissectionLaos
Type
Scientific Note
Information
International Journal of Tropical Insect Science , Volume 25 , Issue 1 , March 2005 , pp. 59 - 61
Copyright
Copyright © ICIPE 2005

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References

Graves, P. M., Burkot, T. R., Carter, R., Cattani, J. C., Lagog, M., Parker, J., Barbin, B. J., Gibson, F. D., Bradely, D. J. and Alpers, M. P. (1988) Measurement of malarial infectivity of human populations to mosquitoes in the Madang area, Papua New Guinea. Parasitology 96, 251–263CrossRefGoogle ScholarPubMed
Mendis, A. C. G., Rajakkaruna, J., Carter, R., Mendis, K. N. (1991) Infectious reservoir of Plasmodium falciparum malaria in an endemic region of Sri Lanka. American Journal of Tropical Medicine and Hygiene 45, 479–487CrossRefGoogle Scholar
Pampana, E. J. (1963) A Textbook of Malaria Eradication. Oxford University Press, London 82 pp.Google Scholar
Phetsouvanh, R., Inthakone, S., Naphayvong, P., Hongvanthong, B., Phompida, S., Sidavong, B., Vanisaveth, V., Sengsavath, V. and Luangphengsouk, K. (2000) The current malaria situation in Lao PDR. Mekong Forum 5, 14–21Google Scholar
Pringle, G. (1966) A quantitative study of naturally-acquired malaria infections in Anopheles gambiae and Anopheles funestus in a highly malarious area of East Africa. Transactions of the Royal Society of Tropical Medicine and Hygiene 60, 620–632CrossRefGoogle Scholar
Rosenberg, R. & Rungsiwongse, J. (1991) The number of sporozoites produced by individual malaria oocysts. American Journal of Tropical Medicine and Hygiene 45, 574–577CrossRefGoogle ScholarPubMed