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