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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 mistake produced 120,000 doses of polio vaccine that contained live polio virus. Of children who received the vaccine, 40,000 developed abortive poliomyelitis (a form of the disease that does not involve the central nervous system ), 56 developed paralytic poliomyelitis—and of these, five children died from polio. [ 2 ]
The first accident involving a 737 was on July 19, 1970, when a 737-200 was damaged beyond repair during an aborted takeoff, with no fatalities; the first fatal accident occurred on December 8, 1972, when United Airlines Flight 553 crashed while attempting to land, with 45 (43 on board plus 2 on the ground) fatalities; and, as of February 2024 ...
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 ...
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 ...
He caught polio, aged four months, after receiving the polio vaccine. He was in a coma for two weeks and is now a wheelchair user. [60] Joe Bob Briggs: born 1953: Film critic, writer and actor, Briggs contracted polio in childhood and was left with a pronounced limp. [61] Harold Brooks-Baker: 1933–2005
In the control group, Brodie reported that five out of 4500 developed polio; in the group receiving the vaccine, one out of 7,000 developed polio. This difference is not quite statistically significant, and other researchers believed that the one case was likely caused by the vaccine. Two more possible cases were reported later. [11]
This accident was also the first hull loss of a Boeing 737 Next Generation aircraft, [8] the first fatal accident of a Boeing 737-800, [3] [9] and the first Boeing 737 Next Generation accident to result in fatalities on board the aircraft; [10] [note 1] as of January 2025, it is still the fourth-deadliest accident involving the 737 Next ...