A group of students from Kenyatta University are set out to undertake a case control study in Mzuri County, where a disease associated with stiffness of the spine and major joints had been reported. In the process, the researchers established that the prevalence of the disease was 24% out of the total 2800 people examined, 25% were exposed but had no disease while 280 of those not exposed had the disease Questions Describe in detail the study design giving both advantages and disadvantages. Show how the researchers arranged the various people for data collection. 10 marks

Public health policy such as in munizations to children attending public schools have improved the wellness of communities identify another policy that has promoted health within our community

There are two main levels of responsibility related to fitness and fire apparatus operations and preventing injuries and line of duty deaths. the first level involves personal responsibility. the second level involves

Check all that occur during ventricular systole. a. the av valves open to allow blood to enter the ventricles from the atria. b. the av valves open to allow blood to enter the ventricles from the atria. c. the semilunar valves remain closed throughout systole to prevent backflow of blood into the ventricles. d. the semilunar valves remain closed throughout systole to prevent backflow of blood into the ventricles. e. the semilunar valves open to allow blood to flow into the large arteries. f. the semilunar valves open to allow blood to flow into the large arteries. g. the av valves close to prevent backflow of blood into the atria.