Aprende sobre epidemias y virus en inglés

1. Epidemics, viruses
and pandemics in the
world

2. What is an epidemic?
An epidemic occurs when a
contagious disease spreads
rapidly in a given
population, simultaneously
affecting large numbers of
people for a specified period
of time.

3. What is a pandemic?
If an
epidemic
outbreak
affects large
geographic
regions, it is
classified as
a pandemic

4. What is a virus?
A virus is an acellular
microscopic infectious
agent that can only
replicate within the cells
of other organisms

5. The most significant
epidemics in the world
As happened in 2014 with the
Ebola outbreak in West
Africa, considered the worst in
history. The most affected
countries were Sierra Leone,
Liberia and Guinea.

6. Measles
The worst active measles epidemic
in the world in the Democratic
Republic of the Congo, which was
declared only in June 2019 and
which has already killed more than
6,000 people in that country alone.

7. The main pandemics of
the world
Despite being red, Mars is a cold place full
of iron oxide dustVIH Despite great strides
in VIH prevention, testing, and treatment,
the VIH pandemic has not yet been
resolved. Doctors Without Borders works
in many of the southern African countries
with the highest incidence of VIH, where
many people still contract the virus every
day
VIH
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8. Black plague
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The deadliest pandemic in history appears from
the middle of the 14th century. Although there
had already been other plagues considered
"plague," the one that appeared in Europe in
1347, the one known as "black death", due to the
stinking spots and buboes of that color that the
disease made appear all over the body,
overcame everything previously known.
Introduced by sailors, this disease began in the
Mediterranean port of Messina, but it spread
very quickly, reaching England, Germany and
Russia in 1350.

9. Smallpox
Although the death toll is far from that
of the Black Death, smallpox was an
infectious disease that was present in
human societies for centuries. Known
since Roman times, it caused enormous
mortality and there was no general
treatment for its symptoms: very painful
rashes on the skin, pustules and fever

10. COVID-19
Mercury is the closest planet to the Sun and
the smallest one in the Solar System and a bit
larger than the MoonCoronaviruses (CoVs) are
a large family of viruses that cause illnesses
ranging from the common cold to more
serious illnesses. The COVID-19 epidemic was
declared by the WHO a public health
emergency of international concern on
January 30, 2020
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