Israeli scientists in experiments on macaques have concluded that vaccination against the new coronavirus and experience with COVID-19 disease leads to the development of immunity against the virus SARS-CoV-2. The press service of the Beth Israel Deaconess Medical Center reports.
The researchers have tested prototypes of a vaccine against SARS-CoV-2 on 25 rhesus monkeys. All vaccinated animals produced neutralizing antibodies against the virus. Three weeks after being vaccinated again, they infected the animals with the virus and found that 8 rhesus monkeys had no virus at all, while others had the virus is very low concentrations.
In the second experience, the scientists studied whether the natural immunity against SARS-CoV-2 could be formed in monkeys that had acquired COVID-19. It is known that human contact with a number of viruses does not lead to the formation of immunity. The researchers infected nine adult monkeys with coronavirus, and after they recovered and produced antibodies against the virus, the scientists re-infected the SARS-CoV-2 virus in experimental rhesus monkeys. Meanwhile, none of the monkeys were sick anymore.
Recall that the director of the National Institute of Allergy and Infectious Diseases of the U.S. Anthony Fauci said that those who are ill with the disease COVID-19, caused by a new type of coronavirus infection, will receive immunity for at least six months, but there will be those who do not have antibodies to the virus.