 Other modes of transmission include organ transplantation , through breast milk , and by accidental laboratory exposure . Chagas disease can also be spread congenitally ( from a pregnant woman to her baby ) through the placenta , and accounts for approximately 13 % of stillborn deaths in parts of Brazil . 
 Other modes of transmission include organ transplantation , through breast milk , and by accidental laboratory exposure . Chagas disease can also be spread congenitally ( from a pregnant woman to her baby ) through the placenta , and <a href='uninflect' title='1'><mark>accounts</mark></a> for approximately 13 % of stillborn deaths in parts of Brazil . 
Other modes of transmission include organ transplantation , thru breast milk , and by accidental laboratory exposure . Chagas disease can also be spread congenitally ( from a pregnant woman to her baby ) through the placenta , and account for approximately 13 % of stillborn deaths in parts of Brazil .