SARS-CoV-2 is the name of the virus that causes COVID-19. It is a novel coronavirus, meaning it is a new strain of coronavirus that has not been previously identified in humans.

The COVID-19 pandemic originated in Wuhan, China, in December 2019. The first cases were linked to a seafood market in the city.

The common symptoms of COVID-19 include fever, cough, shortness of breath, headache, muscle aches, fatigue, and loss of taste or smell.

COVID-19 is spread through respiratory droplets, through contact with contaminated surfaces, and through airborne transmission.

Older adults, people with underlying health conditions, and people who are immunocompromised are most at risk of severe illness from COVID-19.

There are no specific treatments for COVID-19, but there are a number of treatments that can help to relieve symptoms and improve outcomes. These include antiviral medications, steroids, and supportive care.

The best way to prevent COVID-19 is to get vaccinated, wear a mask, practice social distancing, and wash your hands frequently.

The first COVID-19 vaccine was approved for use in the United States in December 2020.

As of September 2022, over 6 million people have died from COVID-19 worldwide.

The variant of COVID-19 that was first identified in India in 2021 is called Delta.

The variant of COVID-19 that was first identified in South Africa in 2021 is called Beta.

The variant of COVID-19 that was first identified in Brazil in 2021 is called Gamma.

The variant of COVID-19 that was first identified in the United Kingdom in 2020 is called Alpha.

There is no variant of COVID-19 that was first identified in the United States in 2020.

There is no variant of COVID-19 that was first identified in Russia in 2020.