High titen of antibodies agaiast Anopheles gambiae midguts were produced in New Znaland rabbits to identiff midgut targets for an antimosquito vaccine. The serum from one of 8 rabbits (designated R2B6) killed 71.60lo (Abbott's adjusted % mortality\ of An. gambiaewithtnT days. Mosquitoes ingesting R2B6 serum were unable to absorb their blood meal nutrients, resulting in reduced oviposition and e...

Major W. M. Hoddicu, of the Royal Engineers, has published a very interesting little pamphlet* on the work done by drainage and other works in St. Lucia in the West Indies in the years 1902-03. St. Lucia, like all other islands and ports in the West Indies, is gravely threatened by yellow fever, and as we have on another occasion noticed that the fear of this deadly fever has made anti-mosquito...

BACKGROUND Official guidelines commonly advise travelers to burn mosquito coils as one means of preventing malaria. The objective of this study was to discover if insecticide-containing mosquito coils (1) prevent mosquito bites and therefore malaria acquisition, and (2) are safe in terms of their adverse effects on human users. METHODS We sought published and unpublished controlled trials in ...

Mosquitoes are the major vectors of parasites and pathogens affecting humans and domestic animals. The widespread development of insecticide resistance and negative environmental effects of most synthetic compounds support an interest in finding and developing alternative products against mosquitoes. Natural coumarins and synthetic coumarin analogues are known for their several pharmacological ...

We evaluated the efficacy of commercial antimosquito products in field trials in Illinois in June 1998 by comparing mosquito landing rates. Products tested were a sonic mosquito repeller, an insect killing grid using ultraviolet light and 1-octen-3-ol as lures, mosquito smoke coils containing a pyrethroid, citronella candles, the mosquito plant Pelargonium citrosum, and a N,N-diethyl-3-methylbe...

Cow calves were infected with Japanese encephalitis virus (JEV) by parenteral inoculation. One batch was reinfected with JEV, followed by West Nile virus (WNV), while another batch was reinfected directly with WNV. No viraemia due to either JEV or WNV was demonstrated in any of the calves. Culex tritaeniorhynchus mosquitoes fed on 4 of the calves infected with JEV during the first 10 d had no d...

The clerodane diterpenoids trans-kolavenolic acid, 18-oxocleroda-3,13(E)-dien-15-oic acid, ent-(18-hydroxycarbonyl)-cleroda-3,13(E)-dien-15-oate, 2-oxo-ent-cleroda-3,13(Z)-dien-15-oic acid and trans-2-oxo-ent-cleroda-13(Z)-en-15-oic acid, and the chlorobenzenoid O-(3-hydroxy-4-hydroxycarbonyl-5-pentylphenyl)-3-chloro-4-methoxy-6-pentyl-2-oxybenzoic acid were isolated from Tessmannia martiniana ...