I have found an interesting article on Czech web and so I send the main part of it here

- translated from tn.nova.cz, published 17.4.2020

According to mathematics, the coronavirus itself disappears, but theories have already arisen more

Several interesting theories have already emerged about the coronavirus, which Israeli professor Isaac Ben Israel says the virus should disappear on its own after a while. But there are also completely unsubstantiated reports that can be very dangerous.

Governments are planning measures for months to come, while scientists are working hard to develop drugs and vaccines to cope with the insidious coronavirus. Maybe for nothing! At least, according to leading Israeli mathematician and analyst Isaac Ben Israel. In his opinion, the number of infected in the affected countries will fall to zero after 70 days. This is another of the unconfirmed theories that have emerged in connection with the pandemic.

A simple statistical analysis reportedly shows that the top of the spread reaches the disease Covid-19 after 40 days, for the next month decreases the number of infections virtually to zero. "This will happen no matter where the disease strikes or what measures the government imposes," says Professor Ben Israel.

Let´s hope that mathematics (from Greek "knowledge, study, learning") , the queen of sciences, brings justified optimism !

                                                              Stay healthy                             

                                                                                                                  Margaret