COVID-19: Antibody effect, rapid decline: Imperial College London survey
Corona immunity:
Even if you are infected with the new coronavirus and produce antibodies, there is a possibility that immunity will decline rapidly.
A large study at Imperial College London revealed it.
Effect of antibody:
The effect of the antibody may be lost in a few months. The British media reported on October 27th.
Survey of Imperial College London:
The survey targeted more than 360,000 adults in the English region of England.
Antibodies were detected in 6% of the total from late June to early July.
However, in September, antibody detection decreased to 4.4%.
The Daily Telegraph:
Even when the vaccine is completed, immunity is not sufficiently sustained, and “it may be necessary to inoculate twice a year,” he explained.
https://www.47news.jp/5426588.html
Coronavirus antibody prevalence falling in England, REACT study shows
Tests on more than 365,000 people in England
have shown that the antibody response to the virus that causes COVID-19 wanes over time.
Led by Imperial College London, analysis of finger-prick tests
carried out at home between 20 June and 28 September
found that the number of people testing positive dropped by 26.5% across the study period, from almost 6% to 4.4%.
Our study shows that over time there is a reduction in the proportion of people testing positive for antibodies.
It remains unclear what level of immunity antibodies provide, or for how long this immunity lasts.
Prof Paul Elliott study author, Imperial College London
The downward trend was observed in all areas of the country and age groups, but not in health workers, which could indicate repeated or higher initial exposure to the virus, the authors suggest.
The decline
was largest in people aged 75 and above compared to younger people, and also in people with suspected rather than confirmed infection, indicating that the antibody response varies by age and with the severity of illness.
Imperial News | Imperial College London
https://www.imperial.ac.uk/news/207333/coronavirus-antibody-prevalence-falling-england-react/