my bubonic plague

2. What?
• The Black Death was
one of the worst
natural disasters in
the history. In 1347
A.D., an outbreak
causing widespread
hysteria and death.
The bubonic plague
mainly affected
rodents, but fleas can
transmit the disease
to people.
• An infectious disease
that is caused by the
bacterium Yersinia
pestis and is
transmitted to
humans from infected
rats by the oriental rat
flea is known as the
Bubonic Plague or the
Black Death.

3. Three Forms: The Bubonic, Pneumonic, and
Septicemic. Each killed people in different
ways
BUBONIC PHASE
• Most Common
• Egg-sized swellings (buboes)
• Neck, armpits, groin (dark
blisters)
• Headaches, Weakness,
Nausea/Vomiting
• Severe Fever and Delirium
• The Pneumonic Plague was
the second most commonly
seen form of the Black
Death.
• The Mortality rate: 90-95%
(Today if Treated 5-10%) It
infected the lungs, and the
symptoms included slimy
snot tinted with blood!
Many times victims choked
on their own Blood.
• The Septicemic Plague was
the most rare form of all!
• The 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

4. WARNING: GRAPHIC
CONTENT
The content on the next slide is very graphic and may not be suitable for
children under the age of 16.

5. The Symptoms
Bulbous (a inflammatory swelling of
a lymph node.)
Septicemic Form:
almost 100%
mortality rate.

6. So Who Was The Culprit?
No,
Not
Her!!!

7. The Culprits
Yersinia Pestis
The Black Rat
The Oriental Rat Flea

8. The Disease
CycleFlea drinks rat blood
that carries the
bacteria.
Flea’s gut clogged
with bacteria.
Bacteria
multiply in
flea’s gut.
Flea bites human and
regurgitates blood
into human wound.
Human is infected!

9. • Fleas, which live on the rats for food,
abandon the rat when the rat dies.
• If these fleas then find a human the,
Yersinia pestis is injected into the
bloodstream.
• Then the disease can spread from
man to man.

11. Plague Reaches

12. Ever heard the common nursery
rhyme?
Ring a-round the rosy, Pocket full of posies, Ashes, Ashes! They all fall
down!
Well, the meaning is almost
as simple as the song and
makes sense if you think
twice about the song.
• Ring around the rosy:
rosary beads give you
Gods help.
• A pocket full of posies:
used to stop the odor of
rotting bodies which was
a one point thought to
cause the plague,
it was also widely used by
doctors to protect them from
the infect plague patients.
• Ashes, ashes: the church
burned the dead when
burying them became too
difficult.
• We all fall down: dead

13. The Effects
 1/3 of the population of Europe died.
 In total, 2.5 million people died from the
plague.

14. *Pop Quiz*What were the causes of the Black
death?
A.) Dogs, Rats, Cats
B.) Lions, Tigers, Bears
C.) Yersinia Pestis, Fleas, Rodents
D.) Yersinia Pestis, Bugs, Mosquitoes

15. •B.) Yersinia
Pestis, Fleas,
Rodents