Fatigue, shortness of breath, and depression are the most common long COVID-19 symptoms

18.3 percent of respondents aged 50 to 80 years reported worse mental health; 29.0 percent made a lifestyle change to address mental health

112 of the 253 authorized drugs have not been confirmed as clinically effective; 24 of these have been on market more than five years

Increases in cases mainly due to population growth and aging, with relative importance of these factors varying by region