COVID-19 is an infectious respiratory illness caused by the coronavirus SARS-CoV-2. It spreads primarily through respiratory droplets from coughing, sneezing, or talking. Symptoms range from mild to severe and can include fever, cough, and difficulty breathing.

Coronavirus Disease 2019 FAQ


What causes COVID-19?

COVID-19 is caused by the SARS-CoV-2 virus, which is primarily spread through respiratory droplets.

What are common symptoms of COVID-19?

Common symptoms include fever, cough, fatigue, loss of taste or smell, and difficulty breathing.

How can I prevent COVID-19 infection?

Preventive measures include wearing masks, practicing social distancing, and maintaining good hand hygiene.

Is there a vaccine for COVID-19?

Yes, several vaccines have been developed and authorized for emergency use to prevent COVID-19.

What should I do if I test positive for COVID-19?

If you test positive, stay isolated, monitor your symptoms, and consult a healthcare provider for guidance.

How long does COVID-19 last?

The duration of COVID-19 can vary; most people recover within a few weeks, but some may experience prolonged symptoms.

Can I get COVID-19 more than once?

Yes, reinfection is possible, especially as new variants of the virus emerge.

What treatments are available for COVID-19?

Treatment options include antiviral medications, corticosteroids, and supportive care, depending on severity.

Is it safe to travel during the pandemic?

Travel safety depends on local COVID-19 rates and guidelines; it's essential to stay informed before making plans.

Can children get COVID-19?

Yes, children can contract COVID-19, though they often experience milder symptoms compared to adults.

What are long-term effects of COVID-19?

Some individuals may experience lingering symptoms known as 'long COVID', which can affect various organs.

Are masks effective against COVID-19?

Yes, masks reduce the transmission of respiratory droplets, helping to prevent the spread of the virus.

How can I boost my immunity against COVID-19?

Maintaining a healthy diet, regular exercise, staying hydrated, and managing stress can help improve overall immunity.

What should I do if I have been exposed to someone with COVID-19?

Monitor for symptoms and follow local guidelines, which may include testing and self-isolation.

How is COVID-19 diagnosed?

COVID-19 is diagnosed using a nasal swab or saliva test to detect the virus's genetic material.

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Information provided by Dr. Nithya Priya Raju. Reviewed by Dr. Mohamed El Khouly