In the Northern Italian town In the 40% of people infected with coronavirus have endured the disease without symptoms.
This is evidenced by a study conducted by the Italian University of Padova and Imperial College London, reports Reuters.
In town, with a population of about 3,200 people, was placed under strict quarantine for 14 days after the first in Italy to death from the coronavirus on February 21.
During these two weeks, scientists tested the majority of the population for the presence of SARS-CoV-2. Analysis of the results, published in the journal Nature on Monday, showed that at the beginning of the quarantine for 2.6% of the population, or 73 people were positive. Two weeks later, only 29 were positive.
In both cases, about 40% of the positive cases had no symptoms. But since all detected infected, with symptoms and without, were isolated, the researchers said it helped to slow the spread of the disease, effectively constraining it within a few weeks.
The study provided evidence that mass screening combined with isolation of infected individuals and the local lockdown can quickly stop a local outbreak.