Abstract
Coxsackie A 6 virus, strain V 29, originally isolated from Aedes polynesiensis in Fiji, was found to survive in A. australis for 5 days after intrathoracic injection and for 6 days after feeding on viraemic mice, and in Culiseta tonnoiri for 8 days after feeding.The virus level in both fed and injected mosquitoes fell steadily after infection and never exceeded the original level.No virus transmission was obtained in 46 successful second feedings on days 10-14 with A. australis, but three transmissions were obtained with C. tonnoiri, two on day 10 and one on day 13, from 12 successful second feedings.