Covid-19 vaccine’s effectiveness reduces after six months: Dow University
KARACHI: Dow University of Health Sciences Professor Dr Saeed Khan on Friday said coronavirus cases in the country were multiplying because of a new sub-variant of the viral disease, Bol news reported. Professor Saeed Khan, who is in-charge of Dow university’s Covid-19 laboratory, said the new sub-variant was omicron’s BA.5 type, which was exponentially spreading … Read more