According to extensive studies of the spread of the disease among close contacts of cases COVID-19, held in Moscow, to be infected with the coronavirus can even from asymptomatic patients, which contradicts the findings of the who. The study cases nearly 335 thousand people, held in close contact with almost 107 thousands of cases.
“We have decided to run another large study to investigate the prevalence of COVID-19 among close contacts of cases. According to the results of – contact among infected one in five. Thus, according to the results of our study, the probability of contamination among the people who were in close contact with a sick person, not associated with the severity of COVID-19, the ill, whether asymptomatic or seriously ill people,” – noted Vice-the mayor of Moscow Anastasia Rakova. Previously the who reported that asymptomatic patients with COVID-19 is not a danger to anyone.
Held in Moscow, the monitoring showed that the percentage of those who become ill from asymptomatic patients is somewhat higher than in contact with patients with severe COVID-19. So, if asymptomatic close contact with sick 22% of people with lung disease – 20%, with an average form of gravity – 14%, with severe disease – 15%. Thus, the probability of contamination not associated with the severity of the disease in the sick. Moreover, COVID-19 even more often is transmitted by people suffering from the coronavirus in asymptomatic form.
“The severity of the disease in close contacts is directly related to the severity of disease in infected. So, if a person contracted an infection asymptomatic, about 75% of cases the contact persons also can transfer the disease without symptoms. In turn, for people who have contracted the coronavirus from a grievously ill person, the disease will pass without symptoms only at 45%. Thus 2.7 times increases the proportion of hospitalized,” he added.