For years, global health officials have used billions of drops of an oral vaccine in a remarkably effective campaign aimed at wiping out polio in its last remaining strongholds — typically, poor, politically unstable corners of the world.
FILE - An Afghan health worker uses an oral polio vaccine on a child as part of a campaign to eliminate polio, on the outskirts of Kabul, Afghanistan, April 18, 2017. For years, global health officials have used billions of drops of an oral vaccine in a remarkably effective campaign aimed at wiping out polio in its last remaining strongholds typically, poor, politically unstable corners of the world.
The latest incidents represent the first time in several years that vaccine-connected polio virus has turned up in rich countries.in an unvaccinated 3-year-old, who suffered paralysis. Several other children, nearly all of them unvaccinated, were found to have the virus but no symptoms. The oral vaccine at issue has been used since 1988 because it is cheap, easy to administer — two drops are put directly into children's mouths — and better at protecting entire populations where polio is spreading. It contains a weakened form of the live virus.But it can also cause polio in about two to four children per 2 million doses.
Aidan O’Leary, director of WHO's polio department, described the discovery of polio spreading in London and New York as “a major surprise,” saying that officials have been focused on eradicating the disease in Afghanistan and Pakistan, where health workers have been killed for immunizing children and where conflict has made access to some areas impossible.
Last year, WHO and partners also began using a newer oral polio vaccine, which contains a live but weakened virus that scientists believe is less likely to mutate into a dangerous form. But supplies are limited.
日本 最新ニュース, 日本 見出し
Similar News:他のニュース ソースから収集した、これに似たニュース記事を読むこともできます。
Polio in US, UK and Israel reveals rare risk of oral vaccinePolio viruses recently found in Jerusalem, New York and London were mutated versions of viruses that first originated in vaccines meant to stamp out the paralytic disease.
続きを読む »
Polio in US, UK and Israel reveals rare risk of oral vaccineThe polio viruses recently found in the sewer systems of Jerusalem, New York and London were mutated versions of viruses that first originated in vaccines.
続きを読む »
Childhood Polio Vaccination Rate Is Dangerously Low in Some New York Communities, Increasing the Risk of an OutbreakDespite a school polio vaccine mandate, childhood immunization against polio has dropped in some communities in recent years.
続きを読む »
Polio in US, UK and Israel reveals rare risk of oral vaccineFor years, global health officials have used billions of drops of an oral vaccine in a remarkably effective campaign aimed at wiping out polio in its last remaining strongholds.
続きを読む »
Polio and the monkeypox outbreak demonstrate a 'heightened focus' on virusesTwo-plus years of COVID-19, and people are thinking differently about viruses.
続きを読む »
The history of polio and the vaccines that nearly eradicated itThese archive photos and videos show the impact of the disease and the relief vaccinations brought.
続きを読む »