You have to search for the answer because MSM does not have it.

Yitzhak Ben Israel, a professor at Tel Aviv University, offered early speculation to that effect when in April he said, based on the observed behavior of the virus across the globe, that the virus appears to function more or less the same no matter what a country does to mitigate it. He said the virus appears to follow a fixed pattern in which there is “a decline in the number of infections even [in countries] without closures” that is “similar to the countries with closures.”

https://justthenews.com/politics-policy/coronavirus/doctors-around-world-say-covid-19-losing-its-potency-becoming-less