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cdc changed polio on their site

Posted by on Feb. 25, 2014 at 6:54 PM
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http://www.cdc.gov/vaccines/vpd-vac/polio/in-short-both.htm


Approximately 72% of persons infected with polio will have no symptoms. About 24% of infected persons have minor symptoms, such as fever, fatigue, nausea, headache, flu-like symptoms, stiffness in the neck and back, and pain in the limbs, which often resolve completely. Fewer than 1% of polio cases result in permanent paralysis of the limbs (usually the legs). Of those paralyzed, 5-10% die when the paralysis strikes the respiratory muscles. The death rate increases with increasing age.



These are NOT the numbers there said for years and other sites, too.

How does an almost non existent disease change it's presentation?
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by on Feb. 25, 2014 at 6:54 PM
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micheledo
by Bronze Member on Feb. 25, 2014 at 6:55 PM

Could they have updated it?  

By that I mean 100 years ago, I am sure there were more serious cases and more deaths because of general overall health of the population.  Maybe these are current numbers for modern times???

Just a guess!

emmy526
by New Owner on Feb. 25, 2014 at 6:56 PM

they changed the definition of the disease, that's how

kitty8199
by Silver Member on Feb. 25, 2014 at 7:11 PM
I'm thinking it's data manipulation.



Quoting micheledo:

Could they have updated it?  

By that I mean 100 years ago, I am sure there were more serious cases and more deaths because of general overall health of the population.  Maybe these are current numbers for modern times???

Just a guess!

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kitty8199
by Silver Member on Feb. 25, 2014 at 7:12 PM
Yeah. Used to be asymptomatic 95% of the time.
No major outbreaks and all of a sudden more people are symptomatic.



Quoting emmy526:

they changed the definition of the disease, that's how

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