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(Journalist)
– It turns out that most COVID-19 infections are spread by people who have no symptoms – another reason it’s good to wear masks and other simple precautions, according to the Centers for United States Disease Control and Prevention. “The CDC and others estimate that more than 50% of all infections are transmitted by people who do not have symptoms,” the agency said, per CNN. “This means that at least half of new infections come from people who are probably unaware that they are infectious to others.” The CDC explains that 24% of coronavirus transmitters are asymptomatic, 35% presymptomatic and 41% had symptoms. This means that 59% were transmitted by people without symptoms.
The CDC attributes the discovery to two studies, one of which was published in July by the Proceedings of the National Academy of Sciences. Led by experts in the United States and Canada, it was based on “recent data at the individual level” showing that “the majority of incidents can be attributed to silent transmission”. He added that “therefore, even if all symptomatic cases are isolated, a large outbreak may nonetheless take place” and “more than a third of silent infections need to be isolated to suppress a future outbreak below 1% of the population. population”. The CDC concludes that people can help fight the virus by wearing masks, washing their hands, cleaning and disinfecting surfaces, using ventilation and avoiding crowded indoor spaces. (Read more stories about coronaviruses.)
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