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Sky News reports a study showing that antibodies against Covid-19 decline rapidly after the recovery of people infected with coronavirus.
According to a large study by Imperial College London, instead of developing immunity, the number of people with antibodies to the coronavirus has dropped by 26% over time since Britain’s anti-epidemic measures were eased.
The study was conducted among 365,000 people in three rounds of tests between June and September.
Results from the REACT-2 study show that 6% of people had antibodies to the virus at the time the country’s lockdown was eased in late June and early July, but at the start of the second wave in September, that percentage had dropped to just 4.4%.
According to Imperial College London, around 50-60% of the population will be required to have protection against the coronavirus so that it can no longer be transmitted effectively.
Professor Helen Ward, one of the researchers at Imperial College, said the new results strongly suggested that herd immunity was unattainable.
“When you think that 95 out of 100 people are still prone to being susceptible to Covid-19, we are very, very far from anything that comes close to protecting the population against further spread of the virus,” Sky News said. .
“This (herd immunity) is not something that can be used as a strategy to control Covid-19 infection in the general public,” said Professor Ward.
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