WHO recommends 2 doses of Pfizer Covid-19 vaccine within 21 – 28 days, World News
WHO recommends 2 doses of Pfizer Covid-19 vaccine within 21 – 28 days, World News,GENEVA/ZURICH – People should get two doses of the Pfizer and BioNTech vaccine within 21 – 28 days, the World Health Organisation (WHO) said on Tuesday (Jan 5), as many countries struggled to administer the jabs that c
