2. The disadvantage for a virus in causing humans to have symptomatic illnesses in is in tension with the fact that to succeed, viruses need to make human cells stop doing what they’re supposed to do, and start reproducing the virus, which is by definition going to mean our bodies working less well.
I’m ignorant on the topic, but I don’t fully understand this point. I mean, it makes total sense but isn’t covid infectious several days before symptoms appear? This seems to contradict the point. So, is it impossible / or very hard for a virus to reproduce a lot without causing symptoms to its host? Or what is impossible / very hard is “only” to keep the host symptom-free for a prolonged period of time?
And one more, probably stupid, question: could the main symptom of an infection be a general (false) feeling of well-being? For example, by making the hosts segregate specific hormones. That would hide from the hosts the fact that their bodies have troubles, no?
I’m ignorant on the topic, but I don’t fully understand this point. I mean, it makes total sense but isn’t covid infectious several days before symptoms appear? This seems to contradict the point. So, is it impossible / or very hard for a virus to reproduce a lot without causing symptoms to its host? Or what is impossible / very hard is “only” to keep the host symptom-free for a prolonged period of time?
And one more, probably stupid, question: could the main symptom of an infection be a general (false) feeling of well-being? For example, by making the hosts segregate specific hormones. That would hide from the hosts the fact that their bodies have troubles, no?