Transcript Bubonic Plague

The Culprits
The Famine of 1315-1317
 By 1300 Europeans were farming almost all
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


the land they could cultivate.
A population crisis developed.
Climate changes in Europe produced three
years of crop failures between 1315-17
because of excessive rain.
As many as 15% of the peasants in some
English villages died.
One consequence of
starvation & poverty
was susceptibility to
disease.
The Black Death
• Three Forms: The
Bubonic, Pneumonic,
and Septicemia.
Each killed people in
different ways.
• Bubonic Plague:
Mortality Rate: >67%
Symptoms: Enlarged
or inflamed lymph
nodes (Arm Pit, Neck
and Groin).
The Pneumonic Plague
was the second most
commonly seen form of
the Black Death.
Mortality Rate: 90-95%
It infected the lungs, and
the symptoms included
slimy snot tinted with
blood! Many times
victims choked to death
on their own blood (ew,
gross).
Septicemic Plague
• Most Rare form of all, blood was infected!
• Mortality rate was close to 100%(Even
today there is no treatment)
• Symptoms: High Fever and
skin turning deep
shades of purple!
• Victims usually died
the same day the
symptoms appeared.
The Disease Cycle
Flea drinks rat blood
that carries the
bacteria.
Bacteria
multiply in
flea’s gut.
Human is infected!
Flea bites human and
regurgitates blood
into human wound.
Flea’s gut clogged
with bacteria.
Medieval Art & the Plague
Attempts to Stop the Plague
Leeching
and Lancing
A Doctor’s Robe
Attempts to Stop the Plague
Flagellanti:
Self-inflicted “penance” for our sins!
The Mortality Rate
More than a third of the
European population is now
gone…
…over 25,000,000
dead.