Fourth dose of Covid vaccine raises resistance to serious illness for people over 60: Israel
প্রকাশিত: ২৪ জানুয়ারি ২০২২, ১০:৪২
A fourth dose of COVID-19 vaccine given to people over 60 in Israel made them three times more resistant to serious illness than thrice-vaccinated people in the same age group, Israel's Health Ministr...