There is currently no vaccine against Chagas disease . Prevention is generally focused on decreasing the numbers of the insect that spread it ( Triatoma ) and decreasing their contact with humans . This is done by using sprays and paint containing insecticides ( synthetic pyrethroids ) , and improving housing and sanitary conditions in rural areas . For urban dwellers , spending vacations and camping out in the wilderness or sleeping at hostels or mud houses in endemic areas can be dangerous ; a mosquito net is recommended . Some measures of vector control include :