PLASMODIUM-FALCIPARUM AND PLASMODIUM-VIVAX CIRCUMSPOROZOITE PROTEINS IN ANOPHELINES (DIPTERA, CULICIDAE) COLLECTED IN EASTERN THAILAND

In total, 414 anophelines, consisting of Anopheles karwari (James), An . splendidus Koidzumi, An. dirus Peyton & Harrison, and An. barbirostr is Van der Wulp were collected in 2 provinces in eastern Thailand and tested by enzyme-linked immunosorbent assay for the presence of circum sporozoite proteins. Plasmodium vivax CS protein was detected in 3.4% (2/54) of An. karwari and 4.8% (2/42) of An, barbirostris specimens. B ath P. vivax phenotypes, Pv247 and Pv210, were found in An. karwari, w hereas only Pv247 was detected in An. barbirostris. Plasmodium falcipa rum CS protein was detected only in 0.3% (1/276) of An. dirus. Results indicate that An, barbirostris may play a role in the transmission of P. vivax in Chanthaburi Province, Thailand.