Study: A fifth of asymptomatic patients develop "long COVID"

The study found that across all ages, the most common post viral conditions were in order of frequency: pain, breathing difficulties, high cholesterol, general discomfort and fatigue, and high blood pressure.

The odds of dying 30 days or more after initially being diagnosed with Covid were 46 times higher for patients who were hospitalized with Covid and discharged compared to those who weren't hospitalized.

Overall, 0.5 percent of Covid patients who were hospitalized then discharged died 30 days or more after their initial diagnosis.

Nineteen percent of asymptomatic Covid patients experienced long Covid symptoms 30 days out from their initial diagnosis; the figure grew to 27.5 percent of Covid patients who were symptomatic but not hospitalized, and 50 percent of those who were hospitalized.