Hidden Diseases:

Discussion in 'Biology & Genetics' started by paddoboy, Mar 13, 2020.

  1. paddoboy Valued Senior Member

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    http://www.bbc.com/earth/story/2017...a4iCScy_tvIjngu0WQBdOB-qdNMa0lgbaNafR6cExECjw

    Long-dormant bacteria and viruses, trapped in ice and permafrost for centuries, are reviving as Earth's climate warms:

    Throughout history, humans have existed side-by-side with bacteria and viruses. From the bubonic plague to smallpox, we have evolved to resist them, and in response they have developed new ways of infecting us.

    We have had antibiotics for almost a century, ever since Alexander Fleming discovered penicillin. In response, bacteria have responded by evolving antibiotic resistance. The battle is endless: because we spend so much time with pathogens, we sometimes develop a kind of natural stalemate.

    However, what would happen if we were suddenly exposed to deadly bacteria and viruses that have been absent for thousands of years, or that we have never met before?

    We may be about to find out. Climate change is melting permafrost soils that have been frozen for thousands of years, and as the soils melt they are releasing ancient viruses and bacteria that, having lain dormant, are springing back to life.

    more at link................
     

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