Select the correct answer. Public health workers focused on research do which of the following? A. Organize workers into teams and carry out health promoting projects B. Look at health patterns, test environmental samples, and discover causes of disease C. Develop commercials and other advertisements to promote healthy choices D. Teach people of all ages how to choose more healthy behaviors\

Which action is part of becoming involved in community health? a) supporting regional health efforts b)selecting reputable health providers c)creating new health issues to address d)traveling to new regions to promote global health plz i need to graduate

Ineed an essay 1200words about obezity ,introduction,main causes,conclusion

[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.