Medicine
3 years ago

Siberian COVID-19 study reveals shockingly low herd immunity despite high infection rates.

ОПЫТ ИССЛЕДОВАНИЯ СЕРОПРЕВАЛЕНТНОСТИ К ВИРУСУ SARS-CoV-2 НАСЕЛЕНИЯ ИРКУТСКОЙ ОБЛАСТИ В ПЕРИОД ВСПЫШКИ COVID-19
А. Yu. Popova, Е. Б. Ежлова, A. A. Melnikova, С. В. Балахонов, М. В. Чеснокова, В. И. Дубровина, L. V. Lyalina, В. С. Смирнов, Trukhina Ag, А. Н. Пережогин, A. B. Pyatidesyatnikova, D. D. Bryukhova, N. O. Kiseleva, N. G. Gefan, О. В. Гаврилова, T. A. Gavrilova, Валерия Ломоносова, Арег А. Тотолян

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A study in Irkutsk region investigated the prevalence of COVID-19 antibodies in the population. They found that 5.8% of people had immunity, with the highest levels in children aged 1-6 and 14-17. Being in contact with COVID-19 patients increased the risk of infection by 3.1 times. After having COVID-19, antibodies were detected in 56.5% of cases. 43% of those who had the disease did not have detectable antibodies. Most infected individuals showed no symptoms. These results suggest a low level of immunity in the population during the peak of the epidemic, with a significant number of asymptomatic cases. This information is important for planning preventive measures, including vaccination, and predicting future infection rates.