4. Contagious
This parasitic disease is not considered to be contagious from human to human. Almost always, the parasite will need some type of vector such as the kissing bug in order to be transferred to humans. However, there have been reports of the Chagas disease being spread to humans through organ transplants, from blood transfusions, and from a mother to an infant through the placenta.
The parasite may also be inhaled or ingested and a human may come in contact with the parasite through a laboratory accident.
The good news is that these types of transmissions do not happen very often. There has been a research study done that has shown that in an experimental condition bedbugs can be infected with the parasite from a mouse that is infected.
The bedbugs can then reinfect the mice. However, it does not seem that bedbugs can infect humans.