Human Health and Disease
How could the information learned about a disease's epidemiology be used to protect public health? What kind of epidemiological information would a public health official want to know about this disease? What actions might they take based on this information?
The epidemiology will look at factors such as demographics, causes, patterns and the impact the disease is having. This is used to determine the symptoms, educate the general public and create vaccines to treat the condition. Public health officials need to know about which groups of people are most vulnerable, the way the disease is spread, mortality rates, possible vaccines and what actions are being taken by other stakeholders (i.e. governments, nonprofits and businesses). These areas will help them to determine impact it is having and create strategies to prevent it from spreading. To achieve these objectives they will educate the public, work with researchers to find a cure, coordinate with other public health officials and in extreme situations impose travel restrictions / quarantines.
What might happen if the wrong conclusions were drawn about the etiology of a disease?
The disease could spread from not fully understanding its symptoms, mortality rates and how it is transmitted. This can lead to major outbreaks. Conversely, information that is incorrect will be viewed as wasting time, money and resources. These issues create a sense of anger among the general public who want accuracy, accountability and transparency.
What kind of factors might influence a doctor's choice of one kind of imaging over another? Are there any situations in which one kind of imaging should absolutely NOT be used? If MRI produces such highly detailed pictures, why don't we do MRIs on everyone who needs imaging?
The biggest factors impacting the choices of the doctor include: the accuracy of the image, costs, availability of equipment / parts and where it can be utilized. In theory, there are no situations where any one kind of imaging should not be used. Instead, they are more limited based upon costs. Everyone...
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