No wonder China isn't using mRNA shots

A jaw-dropping, peer-reviewed paper shows China's old-school vaccine produces a far stronger T-cell response to the coronavirus than the Pfizer/BioNTech mRNA jab

China’s CoronaVac shot caused people to make far more T-cells targeting the coronavirus than those who received Pfizer’s mRNA shot, scientists in Hong Kong have found.

Though it is only one datapoint, the study hints the Chinese shot - which is based on older, well understood principles of vaccinology - may ultimately provide longer-lasting protection th…