@Slashvi 16 April 2022 more from that month

WHY don't bats get sick? It's all about their immune system, in this respect bats are, one might say, unique. Their organism is a powerful machine for fighting the most dangerous viruses, although the immunity works just enough to keep the mouse from getting sick, but the virus itself in their organism never dies, rather adapts, mutating into more infectious forms. And so it turns out that a naive mouse lives and has no idea that inside it, as if in an incubator, there is an embittered virus, just waiting for an opportunity to take revenge. As an example, 55 different viruses have been detected in the body of one large individual. And if one person gets sick, then everyone gets sick. After all, bats infect each other instantly, and all because such a popular nowadays phenomenon as "social distance" is unknown to them.