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 Originally Posted by boost
I agree, it's a bit misleading how they talk about it, but they're simply using a shorthand to express that the underlying causes of pneumonia can be communally spread, which then go on to cause pneumonia in some subset of the infected.
Again, look to the definition of pneumonia. If it is not itself a virus, bacteria, or fungus, then how exactly is it spreading? You may again say, well that's just semantics, but I'd again say that in this case semantics actually matter because the distinction is at the heart of what we are (were) discussing.
Same argument can be made about the common cold, afaik it's up to >100 different viruses that can cause it now. Still, no-one tries to argue you can't 'catch' it.
Edit: And there are arguments the common cold is similar to pneum. in the respect that you continually harbor viruses capable of causing it, which only start the party when you're particularly susceptible.
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