Scientists fear that it may prove impossible to produce a working coronavirus vaccine and believe the world may have to simply learn to adapt to the permanent threat of COVID-19.
“There are some viruses that we still do not have vaccines against. We can’t make an absolute assumption that a vaccine will appear at all, or if it does appear, whether it will pass all the tests of efficacy and safety,” Dr David Nabarro, World Health Organization’s Covid-19 special envoy said.
Earlier, the UK’s Chief Medical Officer, Christopher Whitty, told that there was “concerning” evidence suggesting that it may not be possible to stimulate immunity to the virus.
“The first question we do not know is ‘do you get natural immunity to this disease if you have had it, for a prolonged period of time?'” Whitty said.
“Now if we don’t then it doesn’t make a vaccine impossible but it makes it much less likely and we simply don’t know yet.
Other scientists have also raised the possibility that a working virus may never emerge to deal with COVID-19.
David Nabarro, professor of global health at Imperial College, London said the world had to realise that a vaccine may not be possible.
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