Antibodies to the coronavirus can be detected in the body for at least six months after infection in 88 percent of people, according to a British study.
The researchers analyzed data from almost 20,000 patients from the UK biobank, which holds health records for half a million people, from whom blood samples were taken on a monthly basis between 27 May and 4 December 2020, BBC News website
During the affected period, 1,699 people produced a positive antibody test, suggesting that they had previously been infected with the virus. Most of them had already detected antibodies in the first month of the study, suggesting that they became infected in the first wave of the epidemic.
At the end of the study, six months later, 88 percent of the subjects still had detectable amounts of antibodies in their bodies. This cites the results of previous, smaller-scale studies involving health workers.
According to experts, it is possible that after half a year, some or all of the 12 percent who tested negative for antibody testing still had some protection against re-infection, regardless of whether the amount of antibodies in their body did not reach the threshold set in the study.
“Although we are not sure how the presence of antibodies is related to immunity, the results suggest that infected people may be protected from re-infection for at least six months.” – He told Professor Naomi Allen, a senior researcher at the UK Biobank, adding that a longer follow-up study will be needed to determine the exact duration of protection.
The study also provides detailed information on the symptoms most commonly experienced by those infected. Twenty-five percent of subjects reported coughing, 28 percent reported fever, and 43 percent reported loss of olfactory and taste perception. Forty percent of them experienced none of these symptoms and almost 20 percent experienced the disease without symptoms.
The data also support the results of previous studies on who is most likely to be infected at certain points in the epidemic: young adults, black and South Asian people, and residents of poorer neighborhoods were most likely to produce a positive antibody test.
Source: Patika Magazin Online by www.patikamagazin.hu.
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