It's not really clear-cut that it's relevant here, since we're talking about deaths which require at least two organisms (here, a mosquito and a human). The ana

It's not really clear-cut that it's relevant here, since we're talking about deaths which require at least two organisms (here, a mosquito and a human). The analogy would extend to deaths between humans where at least two are required which I think is a neater category to reason about when we think 'threat'. Suicide isn't the same kind of threat the same way another human is. You don't walk down the street ever fearing suicide will be imposed upon you, whereas you may well walk down the street fearing mosquito bites and other people.