Due to interbreeding
no! Bleach has millions of diseases that can be fatal.
cystic fibrosis
Population control via the diffusion of diseases and viruses is the only reason I've come up with...there may be others.Fleas are parasites that live externally on the bodies of mammals. Fleas survive on blood and spread diseases that can be fatal.
Dystentary is one, and also a very high case of Diabetes not treated is fatal.
squamos cell carcinoma please explain
To acquire immunity against fatal diseases.
spread diseases that leave painful sores but are not fatal spread by bite, physical contact, or feces
Cancer tumors and even the smallest diseases are fatal without the proper medical attention.A fever can run wild and a unattended cough could become infectious if let go.
The flu is bad
One disease is fatal, and the other disease is curable.
Rabies is the most popular and highly fatal animal disease.
Yes, if left untreated Especially those associated with fatal human plague, yersinia infections, and hemic and lymphatic diseases.