The COVID-19 variant Omicron has recently spread widely, and the CDC recommends that anyone over the age of 2 who has not been vaccinated and who has a compromised immune system should wear a mask in indoor public places.
Fully vaccinated people should wear masks if they are located in areas with high or high COVID-19 transmission rates; they are required on public transportation, including airplanes, buses and trains, as well as indoor transportation hubs such as airports and train stations. The CDC says masks are generally not required outdoors, but says it's worth considering wearing them during crowded outdoors or close contact with people who aren't fully vaccinated.
Doctors noticed that patients' symptoms were slightly different from previous variants: mild cold symptoms such as sore throat, sneezing, and runny nose were becoming more common. But pre-COVID-19 signs such as fever, cough, loss of taste or smell have decreased.
The following graph shows how Omicron symptoms compare to those exhibited by their predecessor variants based on data collected by this app.
Before Omicron, we rarely saw breakthrough infections of any variant. Obviously, our immune system doesn't perform as well as other variants. As Omicron spreads across the country, vaccinations and boosters and wearing masks remain the best protective measures against serious illness and hospitalization.
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