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The flu vaccine only lasts a year. What's the issue with Covid 19 antibodies if they only last a year? Just get an annual vaccine.
have to question the quality of the tests? listen to Sir John Bell. He is confident we are close to a breakthrough
Weeks ? Well this been around 7 months plus and they still haven’t wheeled anyone out who’s had it twice in the whole world funny that !
https://www.thetimes.co.uk/article/coronavirus-antibody-protection-may-only-last-weeks-v3nflbgcb?shareToken=3b550f309d1617ea822e33446962b422
People who suffer mild Covid-19 symptoms may carry protective antibodies for only a matter of weeks, potentially complicating the search for a vaccine, a study suggests.
Researchers in Spain who screened nearly 70,000 people found that 14 per cent who were positive for antibodies in a first round of testing gave a negative result two months later. The apparent disappearance of antibodies was mostly seen in those who had very mild symptoms or who had been asymptomatic.
“Immunity can be incomplete, it can be transitory, it can last for just a short time and then disappear,” Raquel Yotti, director of Spain’s Carlos III Health Institute, which co-led the study, said. “We must keep protecting ourselves and protecting others.”
Other researchers said that the findings appeared to be in line with a tentative emerging consensus: that people who hardly notice that they have Covid-19 may not amass lasting antibodies, although other elements of the immune system may still protect them. “It fits the current picture,” Ian Jones, professor of virology at the University of Reading, said. “No symptoms suggests a mild infection, which never really gets the immune system going well enough to generate immunological ‘memory’.”
Professor Jones said that this raised two sets of concerns. “Anyone who tests positive by antibody test should not assume they are protected. They may be, but it is not clear,” he said.
Additionally, the vaccines undergoing trials will need to stimulate the immune system more vigorously than a mild real infection or they too could be short lived. “This is a nuisance as people may have to have regular boosters — and it might also provide material for the anti-vaccine lobby,” Professor Jones added.
The study also indicated that just 5.2 per cent of Spain’s population have developed antibodies against the disease, despite the country being one of the worst hit in Europe with roughly a quarter of a million recorded cases to date. A strict three-month lockdown from March 14 to June 21 helped reduce the rate of infections.
Health workers were twice as likely to have contracted coronavirus as the normal population. The report also found that over 30 per cent of those who had antibodies said that they had not felt ill despite being infected.