Every vaccine starts its journey years before the first public dose: scientists assess whether the vaccine produces protective antibodies without undue harm. Only after the national regulator’s approval does it enter the markets and immunisation programmes. And the watch never ends: doctors and healthcare workers report any event occurring after vaccination
McIlroy and Young hold steady as Masters chasers strike early
McIlroy and Young hold steady as Masters chasers strike early Source: www.channelnewsasia.com
