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The government’s top scientific adviser warned that a Covid vaccine could never eradicate the virus completely.
Sir Patrick Vallance said that only one disease, smallpox, had been completely eradicated with a vaccine as he moved to try to manage expectations about the nationwide rollout of a Covid vaccine.
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Providing evidence to the joint Commons and Lords National Security Strategy Committee, he said a vaccine could be ready for widespread community use in the spring and that doses could be available to some people before then.
But Sir Vallance said he thought it was “unlikely” that a jab would be widely available before then.
He said that in the future, the treatment of Covid-19 could become more like seasonal flu.
Sir Patrick told the committee: “I think it is unlikely that we will end up with a truly sterilizing vaccine that will completely stop the infection.”
“This disease is likely to be circulating and endemic.
“My assessment, and I think that is the opinion of many people, is that this is the likely outcome.
“Clearly, as management improves, as you get a vaccine that will decrease the chance of infection and disease severity, or whatever the vaccine profile is, this starts to look more like a yearly flu than a anything else and that may be the direction we end up going. “
I think it is unlikely that we will end up with a truly sterilizing vaccine that will completely stop the infection.
Sir Patrick Vallance
Sir Patrick said it will become clear in the coming months if there are vaccines that protect and for how long.
He added that while several candidates cause an immune response, only phase three trials will indicate whether they prevent people from becoming infected.
Sir Patrick said: “And we will find out in the next few months. And at that point we will also have a clearer idea about the safety profile of these vaccines and from there we can start to see what sensible vaccination strategy might be. population.”
Sir Patrick’s comments come after Pfizer revealed that it has already manufactured “several hundred thousand doses.”
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The vaccine vials are being stored at the Puurs, Belgium plant and are ready for international deployment if clinical trials are successful.
Health watchdogs must then decide whether the drug is safe and effective.
If so, the American company expects to make 100 million doses available this year, of which a whopping 40 million are destined for the UK.
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