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Epidemiology Hepatitis B

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Epidemiology of Hepatitis B
Hepatitis B is a disease that affects many people worldwide and can cause serious and potentially fatal complications. This paper will provide an overview of this disease, including demographic information, while discussing contributing determinants of health, the implications of the epidemiological triangle as it relates to the Hepatitis B Virus (HBV), the role of the community health nurse, as well as identify a national organization that addresses the disease and how it contributes to reducing the impact on society.
Overview
Hepatitis B is an infection caused by the Hepatitis B virus that multiplies in the liver, causing inflammation that can involve other organs of the body such as the kidneys and vasculature. Symptoms are varied and highly dependent on the severity of the illness and organ involvement. Roughly two thirds of cases are asymptomatic (Mayo Clinic Staff, 2011). The Communicable Disease Chain identifies the infected individual as the host or reservoir, whose portal of exit includes cuts, needles and mucus membranes. The mode of transmission is through direct contact with the portal of entry, which is identified as blood or bodily fluids of the infected individual, into the susceptible host, thereby creating a new reservoir to further spread the disease (Centers for Disease Control and Prevention [CDC], 2012). Once infected, the virus multiplies in the liver causing severe inflammation which may resolve naturally, in acute cases, as the body’s immune response develops antibodies to the virus rendering it inactive. These individuals recover completely but are then carriers of the disease. In cases of chronic HBV, complications may arise including liver cirrhosis, kidney failure, vasculitis, hepatocellular carcinoma, and superimposed Hepatitis D infection caused by a different type of virus which requires the host to

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