plague history
Transcript of plague history
MANY MANY HAPPY RETURNS TO OUR PSYCHE
S. FEROZ
PLAGUE
PROBLEMSTATEMENT
HISTORY
BYC P
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PLAGUE….
CAUSED BY YERSINIA PESTIS
ZOONOTIC DISEASE
SPREADS EPIZOOTICALY,ENZOOTICALLY, SPORADICALLY
VECTOR:- XENOPSYLLA CHEOPSIS
“Ring Around The Rosy
A Pocket Full Of Posies
Ashes, AshesAll Fall Down”
HISTORY…THE TERM PLAGUE IS USED IN,
•BIBLE
•BHAGWAT PURAN IN 1500-800BC
•MAHAMARI-GREAT DEATH
3 PANDEMICS• JUSTINIAN PLAGUE:- In CONSTANTINOPLE Killed 5000 people in 541-547AD
• BLACK DEATH:- The Deadliest in the world Killed 75 million in 14th century• THIRD PANDEMIC:-12 million died in YUNNAN ofChina in 19th Century
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BLACK DEATH
PLAGUE DOCTOR
Physician who treated patients with plague. . .
BY Yersin and Kitasato at Hong Kong in 1894.
Yersin , a student of Louis Pasteur.
Kitasato , a student of Robert Koch.
DISCOVERY…
DISCOVERY…
Transmission by rat fleawas discovered by Paul Louis Simond in 1897
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ATravelled through Karachi and Bombay to study the mode of transmission
DISCOVERY…
Georges GIRARD and Jean-Marie ROBIC discovered vaccine for plague in 1930’s
Was a live vaccine developed from avirulent yersinia
• In 1900, Plague confirmed in San Francisco, called the “Yellow Peril”
• 1907-1909 San Francisco plague epidemic.
• Class 1 quarantinable disease (WHO)
• Denoted as reportable disease
IN SAN FRANCISCO
PROBLEM STATEMENT
TOTAL CASES: 47.1 Billion deaths in 10 Asian countries
MORTALITY RATES: Asia 54.6%, Africa 34.4%, America 11.0%.
YEARS: Highest incidence 1967–1971
WHO Plague Statistics
In INDIA…Annual mortality rate was5lakhs in 1898-1908A menace upto 1940In 1960, U.P & M.P were made Plague freeRe-occurred in 1994
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9Last cases…Reported in Srilanka-1938 Thailand-1952 Nepal-1968 Myanmar-1994 India-2002
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