I needs some more friends. come give me advice

[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.

Magine you are working in a state mental hospital with individuals diagnosed with severe and profound intellectual disability. besides significant cognitive and adaptive skill limitations, many of these individuals may also have multiple physical and sensory impairments. those most impaired are likely totally dependent upon others for their care. what are some important issues to consider when working with people with a high degree of impairment? what kinds of things do you need to consider to be sure you are respecting the dignity of those for whom you care?

What is the function of reverse transcriptase in retroviruses? a) it uses viral rna as a template for dna synthesis.b) it converts host cell rna into viral dna.c) it translates viral rna into proteins.d) it uses viral rna as a template for making complementary rna strands.