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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 6–9), 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 salk’s vaccine.what was the point of giving saline solution to the children who didn’t get the vaccine? explain briefly.
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Health, 23.06.2019 05:30
Which food preservation method can people use at home? a. fermentation b. irradiation c. pasteurization d. thermal processing
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Health, 23.06.2019 07:00
Where does peer pressure come from? a.the power of culture b.the influences of others c.people who purposely try harm you d.the messages in tv commercials
Answers: 2
Health, 23.06.2019 09:30
Which of the following statements is a blaming message ? a. “i think we made a mistake.” b. “you’ve messed up everything! ” c. “we can’t mess this up.” d. “i apologize for the error.”
Answers: 2
Apatient has a heart attack and receives cardiopulmonary resuscitation, including breathing and ches...
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