US National Endowment Vaccine Chief George Pavlakis spoke about the new Omicron substrain, which he says has "showed his teeth"...
new strains
The World Health Organization admits that COVID-19 vaccines will be modified every year, like anti-influenza vaccines, depending on the decrease...
WHO last week once again warned of the spread of new strains of coronavirus. What is known about these super-infectious...
Experts say the vaccines work against all new strains of coronavirus known to date. Even in the case of the...
The World Health Organization is confident in the effectiveness of the vaccines currently in use. However, experts believe it is...