Covid: the virus mostly circulates in closed places and during meals, a study finds

Published by Laurent de Sortiraparis · Published on March 15, 2021 at 11:23 a.m.
According to Institut Pasteur ComCor study’s updated results, Covid contaminations happen in 80% of cases in closed places without ventilation, and specifically during meals.

Are gatherings in closed places, without masks, accountable for the increase in Covid contaminations? A self-evident fact for most of us, an empirical truth for Institut Pasteur that recently confirmed ComCor study’s results on the matter, released back to this December 2020.

A study that extended its sample group to come to such conclusions, including over 77,000 participants. And results are clear: “the assessment of over 10,000 unique and extra-building contacts originating infection shows this contact took place indoors, windows closed, in 80% of cases; indoors, windows open, in 15% of cases; and outdoors in 5% of cases”, searchers explain.

 Contamination mostly happens during meals… According to Institut Pasteur searchers, lunch break is accountable for 35% of contaminations in households, 42% in circles of friends, and 15% at work.

They also say that in 45% of cases, people infected know those who contaminated them. As for contaminations within households, mostly couples transmit the virus from one another. A proportion that “decreased over time (from 64% in October to 55% in January), while contaminations by children increases (from 24% in October to 33% in January)”, the study also reads.

According to the report, having a child sent to school within one’s household represents an “infection increased risk”, especially when they are taken care of by nursery assistants – in 39% of cases – when they go to junior high in 27% of cases, or to high school in 29% of cases. As for contamination outside the household, in happens within one’s family circle in 38% of cases, then in work environment in 27% of cases and last but not least in 19% of cases in friend circle.

Note the study can be put in question at any time, because of the spread of the UK, Brazilian and South African variants over the territory.

Practical information
Comments