Abstract

It is generally known that<i>Aedes (Stegomyia) aegypti</i>, Linn. is the only vector for the transmission of yellow fever from man to man in the Western Hemisphere. This disease has been eliminated from almost the whole of the Western Hemisphere by the control of<i>Aedes aegypti</i>alone and without reference to other mosquitoes. In addition, numerous experiments were carried out by early workers in which yellow fever was transmitted from man to man by these mosquitoes while similar experiments with other species proved negative. Marchoux and Simond attempted to transmit this disease by five different species, viz.,<i>Aedes scapularis, Aedes taeniorhynchus, Culex quinquefasciatus, Psorophora ciliata</i>and<i>Psorophora posticata</i>, with uniformly negative results. In a recent publication, conclusive evidence was brought forward to show that yellow fever in West Africa is similarly transmitted by<i>Aedes aegypti</i>. However, there are numerous species of the genus<i>Aedes</i>in West Africa which resemble<i>aegypti</i>

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