Vaccination, regular exercise, and prevention of chronic lung disease reduce exacerbation of COVID-19 severity in northern Okinawa, Japan: A cross-sectional study.

Environ Health Prev Med · 2023 · PMC10685076 · PMID 38008444

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an increasing trendno p-value reported

1 , upper section), the initial group of 4,899 patients with COVID-19 showed an increasing trend over the 3 years and a substantial increase in 2022.

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