Majority of pandemics in history are a result of this rare in absolute terms occurrence.
In general diseases that are already highly evolved for their host, mostly innocuous... everyone gets the common cold like 2 times a year, 80% of people have herpes, etc... in most cases the pandemics are caused by diseases that have crossed the infection boundary but arent evolved enough to appropriate limit themselves, this commonly occurs because the disease recently jumped from one host to another..
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this statement is true but meaningless...
Majority of pandemics in history are a result of this rare in absolute terms occurrence.
In general diseases that are already highly evolved for their host, mostly innocuous... everyone gets the common cold like 2 times a year, 80% of people have herpes, etc... in most cases the pandemics are caused by diseases that have crossed the infection boundary but arent evolved enough to appropriate limit themselves, this commonly occurs because the disease recently jumped from one host to another..