Coronavirus disease (COVID-19) is caused by a newly discovered coronavirus and spreads mainly through respiratory droplets produced when an infected person coughs or sneezes. Most people infected experience mild symptoms, but older people and those with underlying conditions are more likely to develop serious illness. The first known human coronavirus was identified in 1965. More recently, SARS emerged in China in 2002 and MERS started in Saudi Arabia in 2012. To prevent the spread of coronavirus, it is important to wash hands regularly, cough into the elbow, avoid touching the face, and practice social distancing.

1. CORONAVIRUSINTRODUCTION

2. Whatiscoronavirus
Coronavirus disease (COVID-19) is an infectious disease caused by
a newly discovered coronavirus.
Most people infected with the COVID-19 virus will experience mild
to moderate respiratory illness and recover without requiring
special treatment. Older people, and those with underlying
medical problems like cardiovascular disease, diabetes, chronic
respiratory disease, and cancer are more likely to develop serious
illness.

3. Historyofcoronavirus
Scientists first identified a
human coronavirus in 1965. It
caused a common cold. Later
that decade, researchers found
a group of similar human and
animal viruses and named them
after their crown-like
appearance.
The one that causes SARS
emerged in southern China in
2002 and quickly spread to 28
other countries. More than 8,000
people were infected by July
2003, and 774 died. A small
outbreak in 2004 involved only
four more cases. This
coronavirus causes fever,
headache, and respiratory
problems such as cough and
shortness of breath.
MERS started in Saudi Arabia in
2012. Almost all of the nearly
2,500 cases have been in people
who live in or travel to the
Middle East. This coronavirus is
less contagious than its SARS
cousin but more deadly, killing
858 people. It has the same
respiratory symptoms but can
also cause kidney failure.
.

4. SpreadingcoronavirusinChina
On December 30, the Wuhan
Municipal Health Commission
issued an urgent notification to
medical institutions under its
jurisdiction, ordering efforts to
appropriately treat patients with
pneumonia of unknown cause, it
said.
On December 31, the municipal
commission released a briefing on
its website about the pneumonia
outbreak in the city, confirming 27
cases and telling the public not to
go to enclosed public places or
gather.
adding that commission started
releasing the briefings on the
pneumonia outbreak from the next
day.
While the Monday's document
listed day-by-day account of how
China handled the fast spreading
virus, it was conspicuously silent
about the emergence of the deadly
infection from Huanan Seafood
Wholesale Market in Wuhan which
was subsequently shut down.

5. Symptomofcoronavirus
Most common symptoms:
1) fever
2) dry cough
3) tiredness
4) Less common symptoms:
5) aches and pains
6) sore throat
7) diarrhoea
8) conjunctivitis
9) headache
loss of taste or smell
a rash on skin, or discolouration of fingers or toes
Serious symptoms:
difficulty breathing or shortness of breath
chest pain or pressure
loss of speech or movement
On average it takes 5–6 days from when someone is infected with the virus for
symptoms to show, however it can take up to 14 days.

6. Coronavirussurveyinworld

7. Preventionofcoronavirus
1. Wash hand regularly
2. Cough into elbow
3. Dispose tissue
4. Avoid contact
5. Avoid crowd
6. Avoid touching face

8. STAYHOME
STAYSAFE
WEARMASK
WASHYOURHAND

9. Presentedby
AminulIslam