This is a presentation about the 5 deadliest pandemic that have been recorded in the world From Justinian to Covid-19

1. 5 PANDEMICS THAT
SHOOK THE WORLD
Presented by- Aadi Bansal

3. WHAT WAS IT?
• This disease was caused by the bacterium Yersinia pestis.
• It was the plague in he Byzantine empire during (541-549 AD)
and claimed the lives of around 100,000,000 people during 8
years, around half of worlds population.
• It was named after the roman emperor at that time, Justinian
who contracted the disease but recovered.
• This pandemic continued to recur until two centuries.

4. THE SPREAD AND IMPACT
• This pandemic started due to harboured rats that clumped
on ships to roman empire from south-east Asia. These rats
carried fleas with the plague.
• This pandemic caused a widespread impact and is recorded
as the first pandemic of the modern era.
• It was also a major reason for downfall of byzantine empire
at that time.

6. THE PLAGUE
• It was caused by the same bacterium- Yersinia pestis.
• It claimed around 400,000,000 lives in the 14th century and
killed 60% of Europe’s population.
• This disease was categorized by fever, weakness and headache.
• This pandemic severeness increased due to famine and constant
war in Europe which caused trading and farming to deter.

7. THE SPREAD AND IMPACT
• This disease spread from fleas living on black rats, this
disease most probably originated in south-east Asia.
• This pandemic lead to the development of quarantine which
started with containing merchants with the plague on their
ships for 30 days.
• It caused large impact on Europe in all aspects
It took two centuries after the plight to restore its formal
glory.

9. THE FLU
• This was a form of influenza that spread from 1917
– 1918.
• This pandemic claimed the lives of 50 million people
and affected around 1/3 rd. of population of the
world
• The flu spread from china to Spanish sailors which
circulated it around the whole world.

10. IMPACT- SOCIAL, ECONOMIC
• This pandemic added to the worsening impact of the World
War I.
• This lead to the shutting down of many healthcare and
business facilities and caused a deadly impact on economy
and social life of people.
• This pandemic caused the first widespread use of masks
and affected the allied powers he most.

12. CHOLERA
• 7 pandemics of cholera have occurred in different places of
the world in the past two centuries.
• This disease is caused by Vibrio cholerae.
• This disease hyped from 1876- 1918 and killed over 23
million people in this period.
• There were several outbreaks In different areas after 1817
with most recent one in Yemen in 2020.

13. SPREAD AND CONTAMINATION
• This pandemic was mainly caused by pilgrimage, lack of
hygiene and water pollution in the world.
• Thanks to the cure found by Robert Koch and Fillipico
Pacini, the disease slowed but still has been a constant
killer in third world countries.
• It is eradicated from most of the nations but third world
nations still fight with this pandemic.

15. CORONAVIRUS
• This diseases caused by Sars-Cov-2 and is the recent and
ongoing pandemic being fought by humanity.
• There are currently 14 million cases and 4,00,000 deaths
but this toll is on a steady rise.
• The disease causes fever, headache, weakness etc.

16. IMPACT
• This pandemic has cost the world billions of dollars in
investment, loans and business closures which have
wreaked havoc in peoples lives
• Many countries have been specially affected by this disease,
for the statistics click the link-
https://www.worldometers.info/coronavirus/
• This disease is a highly infectious one and spreads very fast
due to its resistance.

17. SAFETY MEASURES TOWARDS
CORONAVIRUS
• Keep a distance of 1m from people
• Always wear a mask and protective gear.
• Call helpline number of your country if you recognize any symptoms.
• Help people in the best possible way you can in your surrounding.
• Respect doctors and healthcare staff.
• Stay indoors and avoid contact and visiting people.
• Sanitation and hygiene is my so #stay safe #stay healthy

18. “NEVER LET THE THINGS YOU CAN’T TO PREVENT
YOU FROM DOING THE THINGS YOU CAN.”
JOHN WOODEN