When COVID-19 emerged in early 2020, the known symptoms were dry cough, fever, and shortness of breath. Today, there are many more possible symptoms linked to COVID-19.
Read about the difference among COVID-19, RSV, and flu.
Learn about at-home COVID-19 tests.
Read about the COVID-19 vaccines and how they work.
Cascella, M., et al. (2023). Features, evaluation, and treatment of coronavirus (COVID-19). StatPearls.
Centers for Disease Control and Prevention. (2022). Symptoms of COVID-19.
MedlinePlus. (2023). Coronavirus disease 2019 (COVID-19).
World Health Organization. (2023). Advice for the public: Coronavirus disease (COVID-19).