Here’s what we know so far on what COVID-19 does to the human body in cases of infections and deaths.
COVID-19 belongs to a family of viruses that can cause respiratory illnesses in humans such as the common cold and the more severe diseases such as the severe acute respiratory syndrome (SARS) and the Middle East respiratory syndrome (MERS).
Thought to have been transmitted to humans from an as-yet-unidentified animal source, the new virus spreads primarily through respiratory droplets, such as those generated when an infected person coughs or sneezes. On average, it takes about five to six days for someone to show symptoms after becoming infected. However, some patients do not show any symptoms.
The virus multiplies in the respiratory tract and can cause a range of symptoms, according to Dr Maria Van Kerkhove, who heads the WHO’s Health Emergencies Programme.
“You have mild cases, which look like the common cold, which have some respiratory symptoms, sore throat, runny nose, fever, all the way through pneumonia. And there can be varying levels of severity of pneumonia all the way through multi-organ failure and death,” she told reporters in Geneva last week.
However, in most cases, symptoms have remained mild.
Read more : AlJazeera