Dry season survival of Aedes aegypti eggs in various breeding sites in the Dar es Salaam area, Tanzania.

In field experiments in different breeding sites in a shaded suburban area, 7-40% of A. aegypti eggs survived a 120-day dry period. In a relatively unshaded coral area, only 3-23% of eggs survived 60 days in exposed sites, but 7-17% survived 120 days in shaded sites. Survival in some sites was higher than in the laboratory at constant conditions.