The World Health Organisation's chief scientist on Monday advised against people mixing and matching Covid-19 vaccines from different manufacturers, calling it a "dangerous trend"...
Health Ministry officials will meet Sunday to consider offering third doses of the Pfizer vaccine to individuals with weakened immune systems, Kan news reported...
The Hebei University of Technology (HEBUT) is a provincial public university in Tianjin, China. Hebei Province, Tianjin Municipality, and the Ministry of Education now...