An electron microscope image by the US National Institutes of Health shows in yellow the coronavirus that causes Covid-19. Some medical experts suggest any vaccine that is approved might not need to be 100 per cent effective. Photo: NIAID-RML via AP

Coronavirus: vaccine with ‘incomplete’ immunity could offer a solution to pandemic, experts say

  • ‘There is evidence that immunity doesn’t necessarily have to be sterilising or even comprehensive’ in a Covid-19 treatment, one researcher says
  • As the race for a vaccine accelerates, the National Institutes of Health has begun a first trial for one developed by Moderna to have phase one results in weeks
Topic |   Coronavirus pandemic
An electron microscope image by the US National Institutes of Health shows in yellow the coronavirus that causes Covid-19. Some medical experts suggest any vaccine that is approved might not need to be 100 per cent effective. Photo: NIAID-RML via AP
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