type of polio vaccine

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Dr. Robert Kwok answered:

What type of vaccine is the polio vaccine?

2 types

Vaccinations
There are two types of polio vaccines in the world. The oral type is a live-virus vaccine, but is no longer used in the U.S. since domestic cases of polio no longer occur (because of the success of the oral polio vaccination program). We use the "inactivated" polio vaccine, which is not alive, and is given as a shot. The shot cannot cause polio disease.
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Did the polio vaccine get rid of polio?

Mostly

Poliomyelitis
Wild type poliomyelitis virus still circulates in some areas of the world but is almost never acquired elsewhere.
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Why cases of polio do occur in children despite giving the oral polio vaccine(opv)?

Vaccine-related

Poliomyelitis
The reason that the USA switched back to the killed polio vaccine is that, by then, there was no wild-type polio in the country but a handful of cases occurred related to the live, attenuated oral vaccine.
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Dr. Yash K. Khanna answered:

How many polio vaccines are produce worldwide and who produces them now?

How many polio vacci

Vaccinations
There are only two types of polio vaccines.The oral vaccine which is a live virus vaccine,and not used in US as it can rarely cause paralytic polio.Its use was abandoned few years ago. The other is the injectable madu from killed virus and is used i US as it does not cause paralytic polio.
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Dr. Yash K. Khanna answered:

Rotary pushes the polio vaccine?

Polio Vaccine

Poliomyelitis
Rotary Clubs efforts to eradicate Polio from this world have been very successful as cases of polio in countries like India has almost been wiped out due to vaccination.
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What is the Polio vaccine sugar cube?

Early oral vaccine

Poliomyelitis
The oral polio vaccine first broadly uses in the US in the 1960's.It was common to have large community events where the OPV drops were placed on a sugar cube & given to a recipient. With 1 case of OPV associated polio/2.4 million doses, the OPV was replaced in 1998 by an injected vaccine which has no associated cases. The oral preparation is still used in some parts of the world.
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Are polio vaccines produced and given worldwide?

Yes.

Poliomyelitis
Either the live oral or the inactivated injectable vaccine is given to children in every country that has enough order in it to assure delivery of vaccine to where it is needed.
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How can the polio vaccine work?

Stimulating immunity

Poliomyelitis
The vaccine prevents spread of the poliovirus from the gastrointestinal tract to the nervous system where paralytic disease develops.
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why haven't i heard any more criticism of the original polio vaccine?

Little more to say

Poliomyelitis
There were some cases of polio early on (the Cutter incident) and mostly theoretical issues with sv40 contamination but the original killed polio vaccine stopped paralytic polio in its tracks.
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Why is the oral polio vaccine better than the shot?

Depends on the area

Poliomyelitis
The oral (live weakened) vaccine is still used in the third world because of ease of use & some beneficial local impact.Infants or adults will pass vaccine virus in their stool for weeks & secondary passage thru poor hygiene boosts immunity in the local contacts. A 1per 2million dose risk of polio from the oral vaccine made it too risky in our population where polio is so rare.
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