Studies on Filariasis. I.—The Miģration of the Infective Larvae of Brugia pahangi in Aedes togoi and their Loss from the Mosquito under Experimental Conditions

Abstract

1. There is a slow but definite loss of infective forms of B. pahangi from A. togoi maintained on honey and water alone and denied access to a host.2. During the first blood meal after maturation of the filarial larvae there is a highly significant loss of infective forms from the mosquitos. On the 13th day, when they concentrate in the head of the mosquito, there is an unusually high (96·2%) loss after bloodfeeding.3. The infective larvae migrate to and from the head and proboscis, and the thorax. There is also a migration to and from the head and the proboscis. This shows itself as a rhythm with 8 day oscillations.