Protozoa that induces swelling of the heart ventricles, finally terminating in heart failure in 30% of cases:
http://en.wikipedia.org/wiki/Chagas_disease
The article is a little misleading;
People are getting scared they have to stop kissing other PEOPLE —wrong.
The vector bug (which resembles a very small, slender beetle) has some complex Latin name but is usually called, “the KISSING bug” cuz it usually emerges at night and bites the face of a person asleep.
After sucking some blood, it often POOPS, and later the human victim RUBS the ouchy wound, thereby rubbing the infected poop INTO the wound, sealing their fate.
Not near these bugs? You’re safe, kiss the people u want to.