Hi everyone let this be an open discussion say smth u dislike and smth u like, let see wht ppl think
say ur gender and sexuality get support from the others
every1 is wlcomed
say y life is hard rn, let sm1 be ur therapist
help them and let them help u
say anyth u want as i said this is a free place for every1

[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.

Have a friend or family member complete the questionnaire. make a prediction about that person’s wellness and justify your prediction using two or more complete sentences.

How could you find out if that advice is based in scientific evidence?