 In Chagas @-@ endemic areas , the main mode of transmission is through an insect vector called a triatomine bug . A triatomine becomes infected with T. cruzi by feeding on the blood of an infected person or animal . During the day , triatomines hide in crevices in the walls and roofs . 
 In Chagas @-@ endemic areas , the main mode of transmission is through an insect vector called a triatomine bug . A triatomine <a href='uninflect' title='1'><mark>becomes</mark></a> infected with T. cruzi by feeding on the blood of an infected person or animal . During the day , triatomines hide in crevices in the walls and roofs . 
In Chagas @-@ endemic areas , da main mode of transmission is thru an insect vector called a triatomine bug . A triatomine become infected wit T. cruzi by feedin on tdablood of an infected person or animal . durin the day , triatomines hide in crevices in the walls and roofs .