3 ms·

Ebola is lethal. HIV is so bad that several treatments had to be engineered.

• akira2501 5y ago
  It is lethal to humans, but not to the animals that typically carry it. Ebola didn't evolve in humans to become highly lethal, it evolved to cross species. HIV in and of itself does not kill you. It destroys your immune system in a lengthy process that ultimately leads to opportunistic infections that kill you. This process can take several months to several years. Likewise, HIV crossed species to infect humans, it did not evolve it's capabilities directly in humans.
  • sjg007 5y ago
    It is naive to think that Sars-Cov2 will evolve to be less lethal.
  • catlikesshrimp 5y ago
    Now that you mention, SarsCovid2 might have originated in either a pangolin, a bat or a bioweapons laboratory, according to early media reports. I can't believe that I am being serious, but it is what it is.