Virologist Agranovsky explained the rise in the incidence of COVID-19 in Europe with the delta strain 
The reason for the increase in the incidence of COVID-19 in Europe is that the raging delta strain is more infectious and is only partially neutralized by antibodies that are produced in response to existing vaccines, even the best ones, Alexei Agranovsky, Doctor of Biological Sciences, Professor of the Department of Virology, Faculty of Biology, Moscow State University, explained to Lente.ru.
< p> This is due to the fact that vaccines were developed two years ago for the Wuhan strain, he noted, but stressed that “they cope very well, because mortality and the number of severe cases are falling, and we get sick less often if we get vaccinated.” According to Agranovsky, there is no need to invent vaccines against a new strain, since the existing ones cope well enough with the delta, and we do not have weeks to work in the laboratory and years for clinical trials.
Formerly director of the European Bureau of the World Organization Hans Kluge said that over the past four weeks in Europe, the number of new cases of COVID-19 has increased by more than 55 percent, and Euronews reported that Germany has recorded a new anti-record for the number of cases of coronavirus per day – in 24 hours in the country, more than 50 thousands of new cases of COVID-19 infection.