This is a presentation for all the people who are unaware about COVID-19.
COVID-19 = Corona Virus Disease 2019. Please like and share my presentation.
Presentation by:-
C. S. Nelson
VI - E
D.A.V Boys Senior Secondary School.
D.A.V Group of School.
2. Coronaviruses were first discovered in the
late 1960s.[8] The earliest ones discovered
were an infectious bronchitis virus in
chickens and two in human patients with
the common cold (later named human
coronavirus 229E and human coronavirus
OC43).[9] Other members of this family
have since been identified, including SARS-
CoV in 2003, HCoV NL63 in 2004, HKU1 in
2005, MERS-CoV in 2012, and SARS-CoV-
2 (formerly known as 2019-nCoV) in 2019.
Most of these have involved
serious respiratory tract infections.
2
6. Alphacoronaviruses (Alpha-CoV) are the
first of the four genera, Alpha-, Beta-, Gamma-
, and Deltacoronavirus in the
subfamily Coronavirinae of the
family Coronaviridae. Coronaviruses are
enveloped, positive-sense, single-stranded RNA
viruses that include both human and zoonotic
species. Within this subfamily, viruses have
spherical virions with club-shaped surface
projections and a core shell. The name is from
the Latin corona, meaning crown, which
describes the appearance of the projections
seen under electron microscopy that resemble
a solar corona. This genus contains what were
previously considered phylogroup 1 corona
viruses.
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7. Betacoronaviruses (β-CoVs or Beta-
CoVs) are one of four genera
of coronaviruses of the
subfamily Orthocoronavirinae in the
family Coronaviridae, of the
order Nidovirales. They
are enveloped, positive-sense, single-
stranded RNA viruses of zoonotic origin.
The coronavirus genera are each composed
of varying viral lineages with the
betacoronavirus genus containing four such
lineages. In older literature, this genus is
also known as group 2 coronaviruses.
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8. Gammacoronavirus (Gamma-CoV) is
one of the four genera, Alpha-, Beta-
, Gamma-, and Deltacoronavirus, in the
subfamily Orthocoronavirinae of the
family Coronaviridae. They
are enveloped, positive-sense, single-
stranded RNA viruses of zoonotic origin.
Coronaviruses infect both animals and
humans. While the alpha and beta genera
are derived from the bat gene pool, the
gamma and delta genera are derived from
the avian and pig gene pools.[2] Gamma-
CoV also known as coronavirus group
3 are the avian coronaviruses.
8
9. Deltacoronavirus (Delta-CoV) is one
of the four genera, Alpha-, Beta-
, Gamma-, and Deltacoronavirus in the
subfamily Orthocoronavirinae of the
family Coronaviridae. They
are enveloped, positive-sense, single-
stranded RNA viruses of zoonotic origin.
Coronaviruses infect both animals and
humans. While the alpha and beta
genera are derived from the bat gene
pool, the gamma and delta genera are
derived from the avian and pig gene
pools
9
12. In September 2012, a new type of coronavirus was
identified, initially called Novel Coronavirus 2012, and now
officially named Middle East respiratory syndrome
coronavirus (MERS-CoV). The World Health Organization
issued a global alert soon after. The WHO update on 28
September 2012 said the virus did not seem to pass
easily from person to person. However, on 12 May 2013, a
case of human-to-human transmission in France was
confirmed by the French Ministry of Social Affairs and
Health. In addition, cases of human-to-human
transmission were reported by the Ministry of Health
in Tunisia. Two confirmed cases involved people who
seemed to have caught the disease from their late father,
who became ill after a visit to Qatar and Saudi Arabia.
Despite this, it appears the virus had trouble spreading
from human to human, as most individuals who are
infected do not transmit the virus. By 30 October 2013,
there were 124 cases and 52 deaths in Saudi Arabia.
12
14. Updated March 19, 2020, 7:46 AM UTC
The number of coronavirus cases globally
topped 200,000 Wednesday, as people in the
United States and in countries across the world
adjusted to life under lockdowns and isolation.
The concern about the economic consequences
of the pandemic spurred another widespread
decline in stock prices, with the Dow Jones
Industrial Average closing down over 1,300
points on Wednesday. Many major stock
indexes around the world were down more than
4 percent.
According to Johns Hopkins University, there
are currently more than 201,000 confirmed
cases and 8,000 deaths related to the
coronavirus around the world.
14
15. China
Italy
Iran
Spain
Germany
South Korea
France
USA
Switzerland
United Kingdom (UK)
15
16. China, including Hong Kong and Macau, is the worst
affected country by the novel coronavirus (nCoV)
outbreak, officially named COVID-19 by the World Health
Organization (WHO).
China witnessed more than 3,000 deaths and
approximately 74% of the global coronavirus cases as of
09 March, which quickly came down to approximately
58% by 13 March and to 40% by 18 March as the number
of cases in rest of the world surged and Europe became
the new epicentre.
Hubei is the most-affected province within China and
Wuhan, the capital city of Hubei, is the city affected worst
by the coronavirus. Hubei has witnessed more than
67,000 coronavirus-positive cases and continues to report
deaths, although at a slower rate than before.
The number of cases in China, however, has been on the
decline starting March due to the rapid control measures
and response by the Chinese government.
16
17. Coronavirus is getting severe in Italy, making it
the most-affected in Europe as well as outside
Asia. Travel to Italy and Italians travelling to
other countries during the outbreak has been
traced to have caused COVID-19 spread.
Once confined to Northern Italy, COVID-19
cases have spread to entire Italy leading to a
nation-wide lock-down. The Italian
government’s early measures such as closing
educational institutions temporarily might have
limited the spread, although the aged
population continues to be a concern.
Coronavirus deaths in Italy increased by five
times in the second week of March, from 366
on 08 March to 2,503 on 17 March. Total cases
reached 31,506, which is approximately 40% of
those in Mainland China.
17
18. Iran, another country from where coronavirus
spread to rest of the world, currently has more
than 16,000 confirmed cases and has reported
988 deaths. Iran has been suspected to have
delayed revealing about the spread of corona
virus in their country and under-reporting the
cases.
A number of countries have traced their
coronavirus-infected having contracted the
disease during travel to Iran. Many government
officials and politicians including MPs in Iran
have contracted coronavirus, some of who died.
Amid fears of further coronavirus spread, Iran
announced the temporary release of
approximately 70,000 prisoners, according to
Mizan news agency.
18
19. Spain has overtaken South Korea in the number of
coronavirus cases in the third week of March. Since
the first coronavirus case confirmed on 01 February,
the Spanish COVID-19 nCoV-infected cases got
closer to 1,000 in early hours of 09 March and rose
sharply to more 11,800 on 17 March. A minister in
Spain has contracted coronavirus, while the King
and Queen are also being tested.
Spain is currently the second most-affected
European country with coronavirus. Spanish
coronavirus death toll too has increased sharply to
reach close to 533 as a nation-wide lock-down
continues affecting millions of its residents.
Tourism, a crucial sector for Spain, is expected to
face an adverse impact due to the global
coronavirus fears. The Spanish government has
advised companies to ask employees to work from
home to avoid spread.
19
20. Coronavirus cases in Germany, which
borders France and Switzerland, crossed
9,300.
Similar to its neighbour France, Germany
too banned public events involving huge
crowds in order to prevent spread. Trade
fair, The Hannover Messe, has been
postponed due to the coronavirus outbreak
situation.
Coronavirus death toll in Germany is,
however, comparitively lesser, with 26
deaths reported as of 17 March.
20
21. South Korea is among the Asian nations
most hit by coronavirus outside China
due to its proximity to the latter.
Coronavirus cases in South Korea
started surging in February and crossed
8,413 on 18 March.
Deaths due to coronavirus in South
Korea reached 84. The country is being
assisted by China, whose experience in
containing the outbreak has resulted in
controlling the local spread of the
epidemic.
21
22. France is the fourth most-affected European nation
by the coronavirus. COVID-19 nCoV cases in France
have reached 7,730, while death toll reached 175.
The French government has banned public
gatherings. The popular Louvre Museum in Paris was
temporarily closed as a precautionary measure. The
Paris city has reported COVID-19 coronavirus-
positive cases, apart from other regions including
Amiens, Bordeaux, and Eastern Haute-Savoie.
A worker at Disneyland Paris was reported by
Reuters as having contracted the coronavirus.
France currently has only a few clusters with
coronavirus. The ongoing outbreak remains a
concern to the French tourism industry as
coronavirus fears are resulting in a drop in visitors.
22
23. Coronavirus situation in the US is grim with
the cases and deaths increasing fast. The
US COVID-19 cases more than doubled in
three days and increased further to cross
6,000 on 17 March, while the death toll
crossed 100.
Community spread and delayed testing is
currently a major concern to Americans as
enough test kits are not available across
states.
The first coronavirus case in the US was
confirmed on 21 January, but the cases
surged from the second half of February.
23
24. Switzerland, a popular tourist destination, is the
fifth most affected European country by the
novel coronavirus outbreak. The positive
COVID-19 coronavirus cases in Switzerland,
whose borders are close to Milan, Italy, reached
2,700 on 17 March.
Some of the major cities in Switzerland, such
as Geneva and Zurich, have reported confirmed
coronavirus cases.
Deaths in Switzerland due to coronavirus
increased to 27. The Swiss hotel and tourism
industries will be affected if the coronavirus
situation continues to stay for long.
24
25. The UK coronavirus cases surged in the
third week of March making it one of the
top ten countries with coronavirus.
Confirmed coronavirus cases in the UK
reached 1,960 on 17 March, while death
toll reached 72.
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26. 1. HANDS: Wash them
often
2. ELBOW: Cough into
it
3. FACE: Don't touch it
4. SPACE: Keep safe
distance
5. FEEL SICK?: Stay
home
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