Research paper: Choose one of the following infectious diseases: Influenza A (H1N1) virus, Methicillin-resistant Staphylococcus aureus, Clostridium difficile, Tuberculosis, Severe Acute Respiratory Syndrome, or Hepatitis B. Describe its chain of infection. Identify vulnerable populations. Where is it endemic? Is it currently an epidemic? Pandemic? Support your position. Does herd immunity apply? What are the current treatments for this disease process? How is public health policy mitigating this disease? What are the projections for the future?
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Human Diversity and Health Promotion Paper 2
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Introduction
Influenza (H1N1) commonly referred to as Swine flu is a subtype of influenza A virus which is a communicable viral disease. It is associated with symptoms such as lower respiratory tract disease, decreased appetite, fever, chills and nasal secretions. Influenza H1N1 causes upper and potentially, lower respiratory tract infections in the host it infects. As the name suggests, influenza H1N1 is a common infection in pigs globally(Purohit, et al., 2018). It leads to respiratory disease that can infect the respiratory tract of pigs. The people who comes into close contact with infected pigs may develop swine flu which is termed as zoonotic swine flu. The influenza H1N1 virus causes infection in human only when their antigenic characteristics transformed through reassortment. In such a condition, the transmission from person-to-person becomes inefficient. However, influenza H1N1 becomes pandemic such as those which occurred in 1918 and 2009 when the transmission from person-to-person becomes efficient. The first Influenza H1N1 deadly pandemic occurred in 1918 and it was termed as the Spanish flu. It was approximated that H1N1 influenza virus affected about 500 million people globally. The virus caused death of between 50 to 100 million people which represented 3 % to 5 % of the total world population, thus categorized by World Health Organization as one of the deadliest pandemics in human history(Jilani, et al., 2019). The second pandemic occurred in 2009 where the new strain of H1N1 swine flu spread fast around………………………………………………………………………………………………
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