Coronaviruses are a family of hundreds of viruses that can cause fever, respiratory problems, and sometimes gastrointestinal symptoms too.

The 2019 novel coronavirus is one of seven members of this family known to infect humans. In the past three decades, it has shifted from animals to humans.

The COVID-19 virus spreads primarily through droplets of saliva  from the nose when an infected person coughs or sneezes.

There are no specific vaccines or treatments for COVID-19 currently. However, many ongoing clinical trials are evaluating potential treatments.

The history of human coronaviruses began in 1965 when Tyrrell and Bynoe found that they could passage a virus named B814. It was found in human embryonic tracheal organ cultures which was obtained from the respiratory tract of a kid with a common cold.

It was not surprising when the coronavirus respiratory infection called SARS emerged in 2002–2003 from southern China and spread throughout the world.

The first novel coronavirus disease reported from Wuhan, China. The coronavirus grew from a few cases in Wuhan to become a pandemic in less than three months.

Today marks the first anniversary of Covid-19. On this day last year, the first ever case was detected in Wuhan.

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