Why are diseases more communicable within a species (e.g. human-to-human) than intraspecies (e.g. bird-to-human)?
In: Biology
Diseases are like Legos. Sometimes you can find a Duplo that will connect to a Lego but mostly not. Diseases connect to your cells through some mechanism that allows them to evade your immune system and connect, like a Lego to your cells. If you’re an Erector Set, a Lego disease means nothing to you, no way to connect. If you’re a cheap Lego knock off though you’re in trouble. Like the Lego/Duplo example though, there are sometimes diseases who’s “connection mechanism” crosses toy platforms, or species.
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