What is a human coronavirus infection?
There are a number of different coronaviruses. There are
coronaviruses that only affect animals. But then, there are also coronaviruses
that affect humans only. In the case of the recently discovered virus known as novel
coronavirus (COVID-19), it was a virus that originated from animals that have
since transferred to humans.
Based on deduction, the transfer happened in December 2019
in a wet market in Wuhan City, where the first few COVID-19 victims were
discovered. The market was known to slaughter animals, including exotic ones,
for food. The market was also known for its unsanitary practices. Since the
spread of the virus originated in China, the country has the highest number of
COVID-19 cases with 80,761. The death toll has reached 3,136.
Human coronaviruses result in respiratory illness. Among the
most known coronaviruses are SARS, MERS and COVID-19. The virus spreads easily
through respiratory droplets. So if a person with COVID-19 coughs or sneezes,
anyone within six feet who inhales the infected respiratory droplets could
contract the disease. This is why those who share an enclosed space with an
infected person are in danger. This is what happened with the cruise ship
Diamond Princess. Close to 700 passengers contracted the virus and seven of
them died.
Symptoms of those with COVID-19 are fever, cough and
shortness of breath. The symptoms can start showing from two to 14 days after
having been infected.
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