Why cases of polio do occur in children despite giving them age-matched doses of Oral Polio Vaccine(OPV)?

Answer 1

The oral polio vaccine can occasionally revert to an infectious viral form, though this is very uncommon (about one in every 2.4 million cases). Some places have switched to an entirely injected vaccine schedule bacuse of this. It was originally used because it is better at stopping early spread of polio, but in most civilized countries this is not really a concern. It is still used in other countries, however.

Answer 2

Polio vaccine is now just about the only source of polio in the world. A vaccinated person is MORE likely to get polio than a non-vaccinated person. The whole theory of vaccination is flawed. It causes a weakening of the immune system thus making those who are innoculated more susceptible to disease.
There are so many awful side effects to vaccination that it should be considered extremely dangerous.
Just sit back and think for a while.
Is there any sense in injecting a disease directly into your bloodstream.
We have been subjected to an awful mind control program to enable the drug manufacturers to make a fortune.

Answer 3

The live vaccine virus in the Oral Polio Vaccine can undergo reversion to the virulent form of Polio virus in the intestines of the person who receives the oral vaccine. This revertant virulent form is shed in the feces and can infect other small children who have not yet received any form of the Polio Vaccine (Sabin oral live polio vaccine or Salk injected inactivated polio vaccine)

This is why cases of polio still occur despite widespread use of polio vaccine. Education about this risk will minimize the problem. I am not certain what benefit giving "age-matched doses" of Oral Polio Vaccine may have in preventing this phenomenon.

The success of Polio Vaccination campaigns in the US has significantly reduced the risk of acquiring paralytic polio naturally but the relatively small risk of acquiring paralytic polio from vaccine revertants has paradoxically affected the risk benefit ratio of vaccine receipt in the US.

Answer 4

the OPV is a live vaccine that has been weakened. If a person has a weak immune system or is sick, they are not strong enough to fight the illness and will GET polio, either the full illness or a mild case. This is why most places in the US don't use it anymore and it's no longer recommended. You are supposed to get the IPV which is an injectable form of the polio vaccine. This for is not alive and you can not get sick from it.

Answer 5

the possibilities of vaccine triggered polio are one in diverse thousands and thousands. approximately 18 to twenty doses are given consistent with baby in this marketing campaign. The extra the doses, the extra secure it extremely is for the baby. Vaccine is carried in specific boxes so as that the temperature or 'chilly chain' is maintained. even despite if it extremely isn't any longer maintained, the drops will lose their performance yet won't have any part- outcomes. The vial has a circle on it it is pink in coloration. interior the circle is a sq., it is white or easy in coloration. It ability the drops are efficient. If the sq. will become a similar coloration of pink simply by fact the circle, the drops are no longer efficient.

Answer 6

it depends on type of vaccine either live or dead type and also depends communications like frpm tertiary hospital to primary;proper storage maintaing temperature of vaccine;also depends either child is immunsupressed or not specially giving an alive type of vaccine to a immuneosupressed child

Answer 7

ask a doc GOD BLESS!!!!