Asymptomatic F0 easily infects others

According to the US CDC, most infections are in the incubation period of the infected person (1-2 days before the infected person tests positive for SARS-CoV-2 or 2-3 days after they develop). symptom).

In a study in 2021, researchers created a model that estimated the rate of virus transmission from people without symptoms. They predict asymptomatic people account for at least half of all infections.

Previously, in 2020, researchers observed the highest viral load in throat swabs at the time when symptoms first appeared in an infected person. The team estimated that the likelihood of infection was highest when the person was at their peak or before they had symptoms. According to experts, about 44% of Covid-19 cases come from people without symptoms.

In another study in the same year 2020, researchers found that more than half of people who went to a medical facility for a Covid-19 test were asymptomatic and tested positive. The team concluded that pre-symptomatic or asymptomatic transmission is unlikely to exacerbate the extent of disease transmission.

Therefore, if you feel you have Covid-19 but have no symptoms, you should isolate at home and get tested. The Covid-19 test can still identify the virus even if we have or don’t show signs of it. Testing is also important if you’ve been in a crowded place or have traveled recently, as these activities may pose a higher risk of infection.

The US Centers for Disease Control (CDC) advises everyone to get tested for Covid-19 if they have symptoms, have been exposed to F0 in the past 5 days, have been to crowded places, before or after travel, are professionally health or local requirements.

Asymptomatic F0 means that the person tested positive for Covid-19 but did not develop symptoms, even after the virus’ incubation period has expired. The incubation period runs from the time you are exposed to the virus until symptoms appear.

In addition, the pre-symptomatic stage is when a person tests positive for Covid-19 but has not developed any symptoms. They usually take about 2 to 14 days to develop symptoms with a common incubation period of about 4 to 5 days.

Thanh Thu (according to Medical News)