Poliomyelitis also known as Polio is a
Spread through direct person-to
person contact by means of mucus,
phlegm, or infected feces.
Commonly found in developing
countries such as Africa, Asia and
places with poor sanitation/hygiene.
Young children, pregnant women,
and the elderly are most effected by
Usually is most prevalent in the summer
Signs and Symptoms:
Subclinical infections- sore throat, slight
fever, headache, last for 72 hours. 95% of
polio infections are subclinical.
Clinical infections: effects the central
nervous system (brain and spinal cord) and
is divided into non-paralytic and
paralytic. Non-paralytic symptoms include
stiff neck, fever, soreness which all last
about 1-2 weeks. Paralytic symptoms are
more sever with more sensitivity to areas of
the body and muscle spasms in the back of
Muscles effected by polio…
How do you get it?
The disease enters the environment
through feces and poor
Transmitted through person-to-person
and stays in the intestines. Only 1 in
every 200 people show signs of paralytic
The incubation period is between 5-35
days with the average being around 7-
The polio virus is detected through samples of
either the feces or from the mouth.
Polio is preventable, the average person is
vaccinated for life after receiving multiple shots
as a small child and usually protect against the
disease 90% of the time.
Those that don’t get vaccinated run the risk of
getting the virus which is often times chronic in
about 5% of the cases. The other 95% of
subclinical polio lead to future medical
problems such as high blood pressure, kidney
stones, weakness in legs/muscles, etc.
Dr. Albert Sabin
As millions of people
became infected with the
disease it wasn’t until
April 1955 that the “live
polio” vaccine was
made public thanks to
the research of Dr. Albert
Sabin and his colleges at
University of Pittsburg
In server cases of polio the respiratory
muscles can be damaged, this type of
polio is known as bulbar polio.
Only found in extremely rare cases, the
motor neurons of the brain are attacked
by the poliovirus.
Can reduce breathing and cause painful
swallowing and speaking.