![]() ![]() Day 3: This is how long it took, on average, before patients in Wenzhou were admitted to the hospital after their symptoms started.A minority may have had diarrhea or nausea one or two days before this, which could be a sign of a more severe infection. Patients usually experience a fever, followed by a cough. During that time, an infected person likely won't yet know they're sick, but evidence shows they could transmit the virus during the presymptomatic phase.Īfter observing thousands of patients during China's outbreak earlier this year, hospitals there identified a pattern of symptoms among COVID-19 patients: The virus' median incubation period is about four to five days, according to the Centers for Disease Control and Prevention. Patients with severe infections tend to develop difficulty breathing - one of the virus' hallmark symptoms - around five days after symptoms start.īut symptoms generally don't appear right after a person has been infected. They're often followed by a sore throat, headache, muscle aches and pains, nausea, or diarrhea (though in severe cases, gastrointestinal issues can appear earlier in the course of an infection). And only 20% of symptomatic cases become severe or critical.Īmong patients who develop symptoms, a fever and cough are usually the first to arrive. ![]() It often indicates a user profile.Īs doctors observe a growing number of coronavirus patients, they've identified a few patterns in how typical symptoms progress.Īs many as 40% of coronavirus cases are asymptomatic, according to the Centers for Disease Control and Prevention. Account icon An icon in the shape of a person's head and shoulders.
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