Answers: 2
Other questions on the subject: Health
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 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.
Answers: 2
Health, 22.06.2019 19:00, latdoz0952
Does indrect sunlight does not pose any danger to the skin
Answers: 2
Health, 23.06.2019 10:00, kaliyab191
What else happens in your cadriovascular in resonse to your sypathetic nervouse system?
Answers: 1
Do you know the correct answer?
Can you die from a serious infection if you don't follow a doctor's instrcutions?...
Questions in other subjects:
Physics, 26.06.2019 13:50
Chemistry, 26.06.2019 13:50
History, 26.06.2019 13:50
History, 26.06.2019 13:50
Biology, 26.06.2019 13:50
