A high school student receives the Sinovac Covid-19 vaccine in Nanjing, in China’s eastern Jiangsu province. Photo: AFP
A high school student receives the Sinovac Covid-19 vaccine in Nanjing, in China’s eastern Jiangsu province. Photo: AFP

Omicron: China’s Sinovac says third shot could help fight variant, as Hong Kong study fails to reveal antibodies with two

  • About 94 per cent of people with a third dose had detectable levels of antibodies, Sinovac says, after HKU study finds none in 25 people on two-dose regimen
  • The Pfizer-BioNTech vaccine also showed a ‘significant’ immune response drop and boosters may be needed for both, researchers said

Topic |   Chinese coronavirus vaccines
A high school student receives the Sinovac Covid-19 vaccine in Nanjing, in China’s eastern Jiangsu province. Photo: AFP
A high school student receives the Sinovac Covid-19 vaccine in Nanjing, in China’s eastern Jiangsu province. Photo: AFP
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