Chagas disease vector control

GURTLER RE; CECERE MC

Triatominae: The Biology of Chagas Disease Vectors

Springer

Lugar: Charn; Año: 2021;

Most of the transmission of Trypanosoma cruzi to humans is mediated by triatomine species adapted to thrive in domestic habitats and blood-feed on humans. Therefore, residual house spraying with insecticides in the hands of professional spraymen remains the mainstay of triatomine control. Pyrethroid insecticides have been in use for nearly 40 years. We examine the effectiveness and epidemiological impact of residual house spraying, its main limitations, and focus on the reinfestation process and the putative sources of reinfestant triatomines. Peridomestic foci and sustain effective vigilance after the initial gains of the attack phase are the Achilles? heel of many triatomine control programs. High levels of pyrethroid resistance associated with triatomine control failures appeared in the late 1990s and so far have remained restricted to northern Argentina and Bolivia. Other insecticide delivery systems of more limited use include disposable fumigant canisters and insecticidal paints. Housing improvements and other multisectoral environmental measures directed to prevent house colonization have not been exploited to its full potential and may play an important role for sustainable vector control across diseases. Integrated vector and disease management is the key to achieve sustainable vector and disease control in the affected areas.