Author: Merencova Anastasia
Translator: Issabayeva Madina
Copy editor: Kigbayeva Kamila
A research team from Chongqing Medical University (Beijing, China) examined 37 asymptomatic cases between the ages of 8 and 75, which were placed in the Wenzhou People’s Quarantine Hospital. They found that the asymptomatic current of a new coronavirus disease (COVID-19) was a consequence of a weaker immune response.
The research team found that the average time taken to release the virus (interval from the first to the last positive nose smear) in asymptomatic cases was 19 days, which is 14 days longer than in patients with mild symptoms, And 37 days longer than people who had the full range of symptoms.
Both in the acute phase (the period when viral RNA can be detected in a respiratory sample) and in the early recovery phase (eight weeks after discharge from hospital), Igg levels (the main type of blood and intercellular fluid antibodies) Asymptomatic patients were significantly lower than patients with symptoms of infection.
In addition, 30 asymptomatic cases showed a decrease in neutralizing antibodies in the early recovery phase. In a group of patients with symptoms, only 23 people reported the phenomenon. According to the authors of the work, the discovery of a decrease in the level of Igg and the level of neutralizing antibodies in the early recovery phase may help to develop suitable serological studies.
Link: http://www.xinhuanet.com/english/2020-06/22/c_139158489.html
