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polio is a crippling and potentially deadly infectious disease. The virus spreads from person to person and is commonly spread amoung children while playing together. polio has common flu like symptoms but cna deveople into life threatening conditions.

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common, flu like symptoms include:

sore throat

Fever

Tiredness

Nausea

Headache

Stomach pain

and can last 2-5 days and then go away on its own.

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But the virus can develop other more serious symptoms that affect the brain and spinal cord:

Paresthesia (feeling of pins and needles in the legs)

Meningitis (infection of the covering of the spinal cord and/or brain), occurs in about 1 out of 25 infected people

Paralysis (can’t move parts of the body or weakness in the arms, legs, or both) occurs in about 1 out of 200 infected people

post-polio syndrome (when a complication of polio appears many years after first infection)

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Paralysis is the most severe symptom because it can lead to permanent disability and death. 10 out of 100 people who have paralysis from poliovirus infection die because the virus affects the muscles that help them breathe.

even children who seem to fully recover can develop new muscle pain, weakness, or paralysis as adults, 15 to 40 years later

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Poliovirus only infects humans and is very contagious. The virus lives in an infected person’s throat and intestines. It enters the body through the mouth and spreads through contact with the feces (poop) of an infected person and, though less common, through droplets from a sneeze or cough. You can get infected with poliovirus if you have feces on your hands and you touch your mouth. Also, you can get infected if you put your mouth on objects like toys that are contaminated with feces. People who don’t have symptoms can still infect otherss around them.

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the CDC says children need to recieve 4 rounds of the polio vaccine. they say children should recieve a vaccine at the ages:

2 months

4 months

6-18 months

4-6 years

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WHO shows that the Syrian Arab Republic had the highest reported cases. they have recently seen an outbreak of polio resulting in 74 reported cases.

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the full name is poliomyelitis, and its caused by the poliovirus.

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tin the U.S., the polio vaccine trials began in 1955. in 1954 their were 38,476 reported cases and after the trials, in 1956 the cases declined to 15,140.

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The incubation period for nonparalytic (does not cause paralysis) polio is 3-6 days. the onset of paralysis in paralytic poli is 7 to 21 days.