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Health, 22.06.2019 15:20, timozy95
[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, 22.06.2019 16:00, mrfloyd1250
Meg is moderately active and completes 30minutes of daily activity above the baseline level. based on the chart, which activity will not increase megs physical fitness?
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Health, 22.06.2019 21:30, destineecoleman2001
When a doctor suspects that a patient may have diabetes based on what symptoms?
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Health, 22.06.2019 23:00, whitethunder05
Disaster preparedness procedures should include assembling educational and entertainment materials for children. specifying how information will be shared with families. storing one gallon of water for each person. evacuating immediately if it is safe to do so.
Answers: 1
Mathematics, 19.03.2021 18:10
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