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The polio vaccines prevented 29 million cases of paralytic polio between 1960 and 2021, compared with a counterfactual world with no vaccines, according to researchers’ estimates.
The risks and possible side effects of the polio vaccine are comparable to those of other vaccines, the CDC says, such as pain, soreness, swelling, and/or redness at the injection site. Fainting ...
Two of the most prominent were smallpox and polio—both largely conquered in the U.S. with vaccines. Before the smallpox vaccine, many people bore deep scars on their faces and bodies (if they ...
CT images of the head are used to investigate and diagnose brain injuries and other neurological conditions, as well as other conditions involving the skull or sinuses; it used to guide some brain surgery procedures as well. [2] CT scans expose the person getting them to ionizing radiation which has a risk of eventually causing cancer; some ...
Post-polio syndrome (PPS, poliomyelitis sequelae) is a group of latent symptoms of poliomyelitis (polio), occurring in more than 80% of polio infections. The symptoms are caused by the damaging effects of the viral infection on the nervous system and typically occur 15 to 30 years after an initial acute paralytic attack.
Polio is a life-threatening disease that can cause paralysis, poor muscle function that weakens the ability to breath, and brain problems. [ 8 ] [ 9 ] Since 2016, the United States requires all polio vaccines administered to be IPV and not OPV to eliminate the use of live polio virus.
The vaccine derived from this strain, novel oral polio virus type 2 (nOPV2), was granted emergency licencing in 2021, and subsequently full licensure in December 2023. [75] Genetically stabilsed vaccines targeting poliovirus types 1 and 3 are in development, with the intention that these will eventually completely replace the Sabin vaccines. [76]
The recent New York patient was infected with vaccine-derived polio, a strain linked to live virus from an oral polio vaccine not administered in the U.S. It marks the first U.S. of vaccine ...