A study published in the journal Radiology, examined lung scans (CT) of hospitalized  COVID patients (n=144) at 6 months, 12 months, and 2 years after COVID symptom onset. Patient ages ranged from 27 to 80 years.

Over one-third had lung abnormalities including scarring and thickening 2 years later.

The number of patients with fibrotic abnormalities was constant throughout the follow-up period.

Patients with lung abnormalities also reported more respiratory symptoms including cough and shortness of breath and had worse pulmonary diffusion than those whose CT scans were clear.

Source: doi:10.1001/jama.2023.2886

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