Contagious Cancers
The Naked Scientists Podcast
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Is There Evidence That Cancers Are Spreading Among Humans?
There are quite a number of examples of cancers spreading between two people or between small groups of people. These usually er in three different types of settings: surgical accidents, organ transplants and pregnancy. The body tolerates the evasive growth of tissue which is genetically incompatible to it. And so as it's spread along, it sometimes stolen mitochondrial diona from its host, which helps it to adapt better to being a cancer. This might also be a mechanism which might occur from time to time in human cancers.
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