In ancient egypt, people believed that illness was caused by a demon or evil spirit. however, they realized that there were some illnesses that were not spiritual or religious in nature. these illnesses were the result of a specific occurrence or action. which actions or occurrences did they realize caused illnesses that were not spiritual in nature?

En el ecuador existieron comunidades prehispanicas que practicaban algun tipo de ritual de enterramiento como el que se describe en el articulo la solidaridad comenzo en las cabernas

What is one way that vance might have been able to prevent this injury?

[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.