Epidemiology Of The Communicable Disease

1325 Words Jul 21st, 2015 6 Pages
“Epidemiology is the study of the distribution and determinants of health-related states or events (including disease), and the application of this study to the control of diseases and other health problems (WHO, 2015)”. “Various methods can be used to carry out epidemiological investigations: surveillance and descriptive studies can be used to study distribution; analytical studies are used to study determinants (WHO, 2015)”.This paper discusses about epidemiology of HIV infection, including factors that contribute the development of the disease, epidemiologic triangle, role of community health nurse and the national organization that address the communicable disease.

HIV is global pandemic stands for Human Immunodeficiency Virus, weakens the immune system by destroying the important cells in our body that fights against disease and infection. Our immune system is able to clear out most of the viruses from our body, but once you have HIV , you have it for lifelong. HIV can hide in our body cells for long time and it can attack the T cells and CD4 cells, a key part of our immune system to fight infections and diseases. Overtime, the HIV may attack so many of CD4 cells and our body is no more able to fight against infections. When this happens, HIV can lead to AIDS, the final stage of HIV infection. HIV can be transmitted through sexual contact, injection or drug use, pregnancy, breast feeding, occupational exposure, and rarely through blood transfusion and organ…
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