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Asymptomatic Covid-19 patient infected – nobody

Whether asymptomatic Covid-19 virus carriers are contagious or not, is a much debated subject. A Chinese case-study* reveals interesting new insights.

The asymptomatic patient and the 455 people the patient came into contact (the contact was 4-5 days in median) became the subjects of this Chinese case-stydy. Those contacts were 35 patients, 196 family members and 224 hospital staffs. Apart from hospital staffs, both patients and family members were isolated medically.

The results: No sign of Covid-19 infection of contacts

The study concluded: “In summary, all the 455 contacts were excluded from SARS-CoV-2 infection and we conclude that the infectivity of some asymptomatic SARS-CoV-2 carriers might be weak.” CT images showed no sign of COVID-19 infection and no severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections were detected in the 455 contacts by nucleic acid test.

*Gao M, Yang L, Chen X, et al. A study on infectivity of asymptomatic SARS-CoV-2 carriers. Respir Med. 2020;169:106026. doi:10.1016/j.rmed.2020.106026

Image: Pixabay

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Written by Sonja

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