A new study in BMJ Global Health across 13 middle- and high-income countries reveals that 25% of patients reported symptoms of long COVID after symptomatic COVID-19, and long COVID is significantly more prevalent in participants from less wealthy nations and in patients of Arab or North African ethnicity. [CIDRAP - Univ. of MN]

A second study published in BMC Public Health showed that, among 3,693 COVID-19 patients in China, 30.2% reported at least one persistent long-COVID symptom, and 10.7% noted symptoms affecting daily life.

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