COVID-19 - Frequently asked questions - COVID-19 (Coronavirus)- n95 หน้ากากปากเป็ดออสเตรเลีย coronavirus ,COVID-19 is a disease caused by a new form of coronavirus called SARS-CoV-2. Coronaviruses are a group of viruses that cause respiratory infections. COVID-19 and seasonal allergies share some symptoms, but there are often some key differences between the two. For example, COVID-19 can cause fever, which is not a common symptom of seasonal ...

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