The Manual on Viruses

December 2019: first identefied outbreak from COVID-19 in Wuhan, China.
11. March: Outbreak decleared a pandemic from the WHO
As of May 2020: more than more than 4.89 million cases of COVID-19 have
been reported in more than 188 countries and territories, resulting in more
than 323,000 deaths. More than 1.68 million people have recovered from
the virus. NO VACCINE HAS BEEN DEVELOPED UNTIL NOW.
Spread between people:
1. Spread mainly by: Close contact most often via Droplet spread (coughing,
sneezing, talking). droplets usually fall to the ground or onto surfaces
rather than travelling through air over long distances.
2. Less commonly: by touching a contaminated surface and then touching
their face.
It is most contagious during the first three days after the onset of symptoms,
although spread is possible before symptoms appear, and from people who
do not show symptoms.
Symptoms:
May appear 2-14 days after exposure to the virus. People with these symptoms
may have COVID-19:
- Cough
- Shortness of breath or difficulty breathing
- Fever
- Chills
- Muscle pain
- Sore throat
- New loss of taste or smell
- Less common: nausea, vomiting, or diarrhea
Emergency warning signs:
- Trouble breathing
- Persistent pain or pressure in the chest
- New confusion
- Inability to wake or stay awake
- Bluish lips or face
Preventive measures: hand washing, covering one’s mouth when coughing,
maintaining distance from other people, wearing a face mask in public
settings, and monitoring and self-isolation for people who suspect they are
infected. Authorities implemented travel restrictions, lockdowns, workplace
hazard controls, and facility closures. Many places have also worked to increase
testing capacity and trace contacts of infected persons.
THE MANUAL ON VIRUSES
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