DWQA Questions › Category: Extraterrestrial Interlopers › Were the protozoa causing sleeping sickness and amoebic dysentery introduced into our world by extraterrestrials to cause harm? 0 Vote Up Vote Down Nicola Staff asked 5 years ago These pathogenic organisms are also extraterrestrial and an intentional scourge unleashed on humanity. Please login or Register to submit your answer Username or Email Address Password Remember Me Connect with: