These bugs emerge at night and attack victims, killing them silently or infecting them for life.

Emiliana Rodrguez recounts as a child watching friends play a nighttime game of soccer when one of the players collapsed on the pitch. Without knowing what had happened, the Bolivian-born Rodriguez became terrified of the night, terrified of the silent killer known as Chagas, a “monster” she was taught only appears at night.

Chagas is a new kind of monster, a “silent and silent disease” spread by nocturnal bugs that infect up to 8 million people each year, and Rodrguez’ acquaintance was one of the 12,000 people died each year.