Symptoms

Sore throat, then congestion: Common Covid symptoms follow a pattern now, doctors say Doctors who treat Covid describe the ways the illness has gotten milder and shifted over time to mostly affect the upper respiratory tract. NBC News

Doctors say they're finding it increasingly difficult to distinguish Covid from allergies or the common cold, even as hospitalizations tick up. ...

1 in 4 COVID survivors had impaired lung function 1 year on, study shows mr.suphachai praserdumrongchai / iStock CIDRAP

A quarter of COVID-19 survivors had impaired lung function 1 year after infection, and older patients, those with more than three chronic conditions, and those with severe cases improved slower than other patients over time, a Dutch study published yesterday in PLOS One reveals.

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Study links blood clots to brain fog after Covid

A recent UK study suggests that blood clots in the brain or lungs may explain some of the common symptoms experienced by people with "long Covid", including brain fog and fatigue. The study, which included 1,837 people admitted to hospital due to Covid, found that two blood proteins, fibrinogen and D-dimer, were associated with cognitive problems. It is estimated that 16% of these patients experience difficulties with thinking, concentrating, or remembering for at least six months.

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