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Covid-19 could be caught again like a common cold

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UK, (Daily Mail), 13 July 2020 - Immunity to Covid-19 might be lost within months, according to research.  


The findings suggest that, like the common cold and flu, the virus could infect people on an annual basis. This undermines ideas that herd immunity could be a way of defeating the virus.  
King’s College London scientists looked at the immune response of more than 90 patients and healthcare workers at Guy’s and St Thomas’ NHS Foundation Trust.  


They found antibody levels peaked three weeks after symptoms and then declined.  


Lead author Dr Katie Doores told the Guardian: ‘People are producing a reasonable antibody response to the virus, but it’s waning over a short period of time and depending on how high your peak is, that determines how long the antibodies are staying.’   


This means antibody levels were highest and lasted longest in patients who had the most severe cases.  


It also would mean that any protection from a vaccine may not be very long lasting and the vaccine may need to be reformulated every year.

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