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Openclipart, also called Open Clip Art Library, is an online media repository of free-content vector clip art.The project hosts over 160,000 free graphics and has billed itself as "the largest community of artists making the best free original clipart for you to use for absolutely any reason".
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 Mothers' March on Polio was a door-to door canvassing campaign that mobilized women across the United States to raise funds for polio therapies and vaccine development. Started by women in the 1950s, the event became a staple in the March of Dimes ' fundraising efforts and generated funding that helped to support Dr. Jonas Salk's research ...
A few years later, during a polio outbreak in Canada, "masked bandits" stole 75,000 Salk vaccine shots from a Montreal university research center. [25] Just months after the vaccine's success was announced, American President Eisenhower signed the Polio Vaccination Assistance Act of 1955, to ensure the vaccine would be distributed to the public ...
You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses ...
International Travel and Health. Chapter 6 - Vaccine-preventable diseases and vaccines (2019 update). World Health Organization. United Nations (2020). Retrieved on 3 December 2020. Countries with risk of yellow fever transmission and countries requiring yellow fever vaccination (July 2019). World Health Organization. United Nations (4 July 2019).
In 2013, nine health workers administering polio vaccine were targeted and killed by gunmen on motorcycles in Kano, but this was an isolated incident. [ 52 ] [ 53 ] Local traditional and religious leaders and polio survivors worked to support the vaccination campaign, [ 54 ] and Nigeria has not had a polio case since July 24, 2014; in 2016 ...
One of the first medical applications of cell lines derived from fetal tissues was their use in the production of the first polio vaccines. [11] For example, in the 1950s, scientists at the Karolinska Institute in Sweden propagated a polio virus in fetal cell lines to make into a polio vaccine. The resulting vaccine was given to about 2,000 ...