WHO advises a third COVID shot for users of Chinese vaccines

The World Health Organisation recommended that people over 60 receive an additional dose of the shots made by Chinese vaccine makers Sinopharm and Sinovac, citing evidence in studies in Latin America that they perform less well over time. Observational data on Sinopharm and Sinovac shots “clearly showed that in older age groups ... the vaccine performs less well after two doses”, said Joachim Hombach on Monday (Tuesday AEDT) secretary of the independent panel of experts who held a five-day closed-door meeting last week.