Two new studies have cast a long shadow of doubt over our ability to acquire long-term immunity against Covid-19 once we’ve already had it.
One study has already been peer-reviewed and published, while the other still has to be reviewed but the findings suggest the same outcome.
Conducted in China’s Wanzhou District, the study focused on 37 symptomatic and 37 asymptomatic people who had tested positive for the virus. Molecular biologist and co-researcher Ai-Long Huang, of Chongqing Medical University, said that their findings “ The second paper, published as a “preprint” in medRxiv , was based on research done in Wuhan where Covid-19 first emerged as a zoonotic disease, from bats to humans.
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