worldwide efforts to eradicate polio begain in 1988.
worldwide efforts to eradicate polio begain in 1988.
when did worldwide efforts to eradicate polio begin?
1988
in 1988, who launched the global polio eradication initiative to eradicate polio. it has also been successful in helping to reduce cases by 99% since which partnered who with rotary international, the us centers for disease control and prevention (cdc), the united nations children's fund (unicef), and smaller organizations. , it has been working to immunize young children and prevent the re-emergence of cases in countries declared "polio-free". in 2017, a study was conducted where why polio vaccines may not be enough to eradicate the virus & conduct new technology. polio is now on the verge of extinction, thanks to a global vaccination drive. the world health organization (who) stated the eradication programme has saved millions from deadly disease.
world health organization
there are two distinct polio vaccines. the oral polio vaccine (opv, or sabin vaccine) contains an attenuated poliovirus, 10,000 times less able to enter the circulation and cause polio, delivered as oral drops or infused into sugar cubes. it is highly effective and inexpensive (about us$0.12 per dose in 2016) and its availability has bolstered efforts to eradicate polio. a study carried out in an isolated eskimo village showed that antibodies produced from subclinical wild virus infection persisted for at least 40 years. because the immune response to oral polio vaccine is very similar to natural polio infection, it is expected that oral polio vaccination provides similar lifelong immunity to the virus. due to its route of administration, it induces an immunization of the intestinal mucosa that protects against subsequent infection, though multiple doses are necessary to achieve effective prophylaxis. it can also produce contact immunity. attenuated poliovirus derived from the oral polio vaccine is excreted, and infects and indirectly induces immunity in unvaccinated individuals, thus amplifying the effects of the doses delivered. the oral administration does not require special medical equipment or training. taken together, these advantages have made it the preferred vaccine of many countries, and it has long been preferred by the global eradication initiative.
polio eradication