TDR is supporting research to develop, adapt and test vector control strategies in Central American and Andean countries. In these countries, the vectors are found both inside and outside houses. In addition, methods to detect and monitor resistance to insecticides in vectors are being developed and implemented. T. dimidiata populations in order to test the effectiveness of insecticides. Microclimatic conditions and vector population growth Results of a study in Argentina suggest that microclimatic variables such as temperature, illumination and humidity affect the egg hatching rate of the vector, Triatoma infestans .
Temperature also affects the rate of egg laying.
These results suggest that microclimatic variables should be monitored when evaluating the impact of control programmes. Monitoring resistance to insecticides Centres in Argentina and Brazil are monitoring resistance to insecticides in vectors provided by provincial and state control programmes.