They changed the symptoms for Polio, to include inflammatory responses from other things, so that they would have an excuse to push out the polio vaccine. This is basically adverse reactions severely affecting key parts of the nervous system. Polio itself is mostly harmless, without a very poisonous envionment.
Also, the polio vaccine is the main cause, now, of genuine polio outbreaks.
They changed the symptoms for Polio, to include inflammatory responses from other things, so that they would have an excuse to push out the polio vaccine. This is basically adverse reactions severely affecting key parts of the nervous system. Polio itself is mostly harmless, without a very poisonous envionment.
Also, the polio vaccine is the main cause, now, of genuine polio outbreaks.