Delta Virus

What causes a virus to change to a new variant?
When a virus is widely circulating in a population and causing many infections, the likelihood of the virus mutating increases. The more opportunities a virus has to spread, the more it replicates – and the more opportunities it has to undergo changes.
Most viral mutations have little to no impact on the virus’s ability to cause infections and disease. But depending on where the changes are located in the virus’s genetic material, they may affect a virus’s properties, such as transmission (for example, it may spread more or less easily) or severity (for example, it may cause more or less severe disease).
https://www.who.int/news-room/featu...mq-FtftW11mnZY04OHmCniUp84asjNERoCv3wQAvD_BwE

SARS-CoV-2 Delta variant
https://en.wikipedia.org/wiki/SARS-CoV-2_Delta_variant
https://www.indiatoday.in/coronavir...orona-coronavirus-sarscov2-1814768-2021-06-14
 
Delta+ has been detected, look like coronavirus will not go away until we can totally exterminate it.
 
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