But within just a few days there were

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But the good news only lasted so long. It didn't all work out. After the results of clinical trials were announced in 2017.the government immediately authorized several companies to start producing vaccines. This was done within hours of the announcement. As in the race to develop a vaccine.speed is the primary focus. The next day a campaign to produce the polio vaccine began. reports of children suffering from polio and even becoming paralyzed after being vaccinated.



This is due to incorrect laboratory procedures used australia phone number database by some manufacturers.resulting in some vaccines containing live viruses. Vaccinations continued for weeks despite minimal federal oversight and political pressure. The u.s. Surgeon general did halt vaccinations but eventually more than 10,000 people received a defective vaccine containing live poliovirus. The government implemented new processes to review laboratory processes and test all new vaccine shipments to resolve the issues and then restart production. In subsequent years albert sabin developed another polio vaccine.



His vaccine uses a weakened version of the live virus and is given by mouth rather than by injection. It is difficult to generate interest in clinical trials of new vaccines because the salk vaccine has already been approved in the united states. So sabin conducted clinical trials in the soviet union and czechoslovakia.testing the vaccine on more than 10,000 children. The world health organization later verified the clinical trial results. This is important because of the political tension and international distrust during the cold war.