Many more simple studies of percents of dogs & cats infected with T. cruzi are needed since they are reservoirs for human infections. Twelve percent of US foxhounds have antibodies against T. cruzi. Spraying houses with insecticide is the general road to success, therefore learning the reservoir hosts and distinguishing between sylvatic and urban vectors is important.

Chagas disease is not likely to be contracted in cities. Houses with dirt floors and those with palm-thatched roofs, some with open windows, seem ideal for triatomid transmittion.

The main battle lines have been drawn. Disease control is a very political issue. If the biotechnology of a given disease is not widely understood, the PH policies that thus result are very likely to fail. Aside from this, the best laid plans can go awry since a long history of PH embezzlement at all levels is far from eradicated.