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Health, 22.06.2019 15:20
[120 total points] (public health) in one of the largest human experiments ever conducted, in 1954 a randomized controlled trial was run to see whether a vaccine developed by a doctor named jonas salk was effective in preventing paralytic polio. a total of 401,974 children (ages 6β9), chosen to be representative of those who might be susceptible to the disease, were randomized to two groups: 200,745 children (the control group c) were injected with a harmless saline solution (a placebo) and the other 201,229 children (the treatment group t) were injected with salkβs vaccine.what was the point of giving saline solution to the children who didnβt get the vaccine? explain briefly.
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Health, 23.06.2019 03:00
Match the government contribution to mental health to the issue it was created to address. 1. community mental health act of 1963 first federal funding for mental health care 2. commission on mental health, est. 1977 created to determine the mental health needs of the united states 3. the decade of the brain federal funding invested to research mental illness and functions of the brain
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Health, 23.06.2019 04:31
Viral infections in plants ) can be controlled with antibioticsb) can spread within a plant via plasmodesmata c) have little effect on plant growthd) are not spread by animals
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