This criterion of study would help the researcher to know the best medical system and the reasons for this.In studying each medical system, the following steps have to be followed; first, setting of objectives, then methodology of study is clarified. This is followed by data collection and presentation, analysis and making recommendations.The barriers that the researcher is likely to face include lack of corporation from the medical staff, inappropriateness of the research tools, communication problems and the cultural differences affecting the operations of the systems (Joralemon 65). In studying the two medical systems, the differences in circumstances would include the support that each system gets from the affiliate partners, the structural differences and the diverse economic factors under which the system is operated.The contemporary researcher can use ecological and evolutionary models in drawing biological inferences, which apply to the study of HIV. Under the two models, the sets of competing data are analyzed using each model so as to identify the workable model (Joralemon 79). Since the study of HIV involves the inferences on molecular analyses, the evolutionary model would give the development of the molecules responsible for carrying and transmitting the virus.On the other hand, the ecology model would help the researcher to find out the environment, under which the person infected with the virus lives (Joralemon 86). Notably, different regions of the world have different ecological environments and different types of HIV. For example HIV-1 is more prevalent in the Sub-Sahara region and less developed countries than the HIV-2, which is mostly found in the Western countries. Therefore, the ecological study of the region would offer a better explanation to type of virus that the people are likely to be diagnosed with. As a result, it would add weight to the ecological model of studying the spread of HIV.Alternatively, the evolution model seeks to explain the changes that the HIV has undergone in different environments. In fact, the study of HIV has to pay attention to its evolution to establish ways of curbing the further spread. For example, the virus might have originated from a single person or animal, and spread to millions of people around the globe. It is through evolution, in which the virus has infected the millions
Works CitedJoralemon, Donald. Exploring Medical Anthropology, (3rd Ed.). New York, NY: Prentice Hall, 2009. Print.
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