Some viruses prefer mosquitoes to humans, but people get sick anyway. A virologist and entomologist explain why

Humans have an exceptional ability to deal with viruses. In most cases, your immune system is able to fight an infection. On the other hand, your body provides a spa-like environment that is temperate and stable, optimal for viruses to replicate. Human behavior, including close contact with animals and frequent travel, also increases the likelihood of becoming infected.