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According to researchers from Imperial College London and Ipsos MORI, those who tested positive for the new coronavirus should not believe that they have become immune forever. Depending on the case, your immunity can last up to a few months.
The findings were drawn from the largest Covid-19 antibody testing program, involving 365,000 participants in England. The antibody response was found to vary according to a person’s age and symptoms.
How quickly the amount of antibodies decreases
More than 365,000 adults were tested at home by pricking their fingers for 3 months to see if they had antibodies to Covid-19. Researchers estimated that only 4.4% of adults had some form of immunity to Covid-19 in September when cases began to rise again.
According to the study, 6% of study participants found that the antibodies existed between June 20 and July 13, while 4.8% existed between July 31 and August 31. Between June 20 and September 28, the number of antibodies that tested positive for Covid-19 decreased by 26.5%.
The findings suggest that the amount of antibodies decreases in the weeks or months after infection. The results of the 3 rounds of antibody testing indicate that the first wave of the epidemic occurred in a relatively short period, between March and April.
At the same time, the study by Imperial College London and Ipsos MORI found that there was a sharp decline in people reporting Covid-19 symptoms. The researchers also found that there was a decrease in the number of people who tested positive for antibodies in early April, two weeks after the national lockdown.
It was also found that people who did not show symptoms of Covid-19 were more likely to lose detectable antibodies earlier than those who did show symptoms. Antibody loss was slower in those 18 to 24 years of age, compared to those older than 75 years.
What does the Minister of Health say?
Health Minister Lord Bethell said: “This study led by Imperial and Ipsos MORI is a fundamental piece of research that helps us understand the nature of Covid-19 antibodies over time and improve our understanding of the virus in yes.
We rely on this type of important research to complete our ongoing response to disease so that we can continue to take the right action at the right time. It is also important that everyone knows what this means to them.
This study will help in our fight against the virus, but a positive antibody test does not mean that you are immune to Covid-19. Regardless of the result of an antibody test, everyone should follow government guidelines in the pandemic, including social distancing, self-isolation, and getting tested for symptoms and always remembering: hands, face, space. “
The number of people who tested positive for antibodies gradually decreased among the population, regardless of the type of activity. The number of healthcare workers who tested positive for antibodies did not change over time.
source: dailystar.co.uk
