Environmental health Epidemiology Assignment Example | Topics and Well Written Essays - 250 words - 2

Environmental health Epidemiology - Assignment Example Just like the name of the design suggests, the design involves comparing different cases of the same infection. In examination of the Shigellosis infection, several cases in the outbreak would have been compared with other infected individuals not related to this outbreak. This study design would have made it possible to investigate the infectious disease within the context of an extant surveillance system, since it compares prior infections and their causes, with the current cases in the Shigellosis outbreak. One of the principal advantages, of questioning the people that were not ill, is that it provided a basis for identifying the symptoms of Shigellosis through comparing the sick to the healthy. The healthy participants also allowed for distinction of findings from those resulting from other factors. Questioning these individuals also formed a basis of avoiding bias in the study. Examining healthy persons could have been disadvantageous in the sense that their selection could have been prejudiced. Further, it would have been difficult to determine if they were infected, especially if the disease was still in the incubation phase. The case-control study design primarily involved young participants, who were incapable of providing responses to some of the crucial research questions. The design was also vulnerable to selection bias, especially in choosing the control group. The age limitation could have been overcome through selection of an older cohort of participants, while bias would have been avoided through selecting the control group independent of exposure to research status. Bias could also have been avoided through selection of controls representative of the populace from which they were chosen. Potential measures of mitigating Shigellosis infection would include educating park visitors on the significance