Chagas is a complex problem

There is very high transmission in some localities and very low in others. These localities differ in:


Cultural practices

Socioeconomic levels

Ecological features

Genetics of the insect vector and parasite 


In addition, these factors are constantly changing due to changes in land use, including deforestation, and climate change. Why do we have high transmission in some localities and little to no transmission in others? Our collaborative research is aimed at answering this question and developing a model to direct evidence-based control strategies.


Results of our previous studies show that house condition, especially the degree of plastering on the walls is critical factor in risk of Chagas transmission. Ecohealth improvements shift blood sources of insect vectors away from humans, result in reduced infestation, and lower T. cruzi prevalence in the insect vectors.