Abstract

PENA RODRIGUEZ, José Carlos. What are the risks of COVID-19 dispersion in Mexico?. Acta méd. Grupo Ángeles [online]. 2021, vol.19, n.1, pp.151-156.  Epub Jan 31, 2022. ISSN 1870-7203.

In this essay, we present factors that favors the dispersion of the virus COVID-19 in the community and the risks for the mobility specially in the big cities. We analyzed the number of viral particles expelled by subjects: contaminated, asymptomatic, pre-symptomatic and symptomatic during conversation, sneeze, cough and normal breathing. Inhale 1,000 particles of the virus is sufficient to get an infection. With just a cough or a sneeze, a person infected can expel more than 200 million particles to the environment. If that happens in a closed facility (home, room, office), the possibility of infection rises exponentially. The use of a mask is highly recommended in all situations. The opening to activities in many cities, was followed by a rebound in the dispersion of the virus. It is advisable to avoid a premature opening, before a significant and sustained decrease occurred in the number of cases and deaths in the community.

Keywords : COVID-19; dispersion; Flügge droplets; contagion; household; indoor; environment.

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