ear and throught disease

Name: Terrean Robinson

ID#: 28990809

Course: Microbiology

Describe the major emerging and reemerging pathogens and disease (since 1980) and the consequence of these for healthcare system.(Include epi.&mechanism for origin of diseases)

There are several emerging and reemerging diseases since the 1980. Emerging infectious disease results from newly identified and previously unknown infections, which cause public health problems locally and internationally. An emerging disease can be cause by a virus, a bacterium, a fungus, a protozoan and a helminth. Emerging disease associated with viruses since the 1980 are T-cell lympoma-leukemia,Toxic shock syndrome, Heamhorrhagic colitis; heamolytic ureamic syndrome, Hairy cell leukemia, lyme disease, AIDS, Peptic ulcer disease,Venezuelan haemorrhagic fever, Conjunctivitis, disseminated disease ,cholera,Cat scratch disease;bacillary angimatosis, Brazilian heamorrhagic fever, Hepatitis,New Variant Creutzfeldt-Jakob disease and Influenza. Human immunodeficiency virus (HIV) causes acquired immune deficiency syndrome (AIDS) was first isolated in 1983. It is estimated that since the start of the epidemic 30.6 million people worldwide have become HIV infected and nearly 12 million have died from AIDS or AIDS-related diseases.

Hepatitis C, identified in 1989, is now known to be the most common cause of post-transfusion hepatitis worldwide, with approximately 90 per cent of cases in Japan, the United States and Western Europe. Up to 3 per cent of the world population is estimated to be infected; 170 million are chronic carriers at risk of developing liver cirrhosis and/or liver cancer. Sin nombre (i.e., an unnamed) virus was isolated from cases of a local outbreak of a highly fatal respiratory disease. This was done in the southern United States in 1993. It has subsequently been diagnosed in sporadic cases across the United States, Canada and several South American countries. Influenza A (H5N1) virus is a well-known pathogen in birds, but was first isolated from humans in 1997. Its emergence initially suggested the next influenza pandemic but, in the event, the virus transmitted poorly and the spread of the virus appeared to have been contained in 1997.

There are also some emerging diseases that are associated with bacteria these include: Legionella pneumophillai, Escherichilia coli, Borellia burgdorferi, Vibrio cholorae. Legionella pneumophilia was detected in 1977. The bacterium resulted in an outbreak of severe pneumonia in a convention center in the United States in 1976 and it has since been associated with outbreaks linked to poorly maintained air conditioning systems. Escherichia coli O157:H7: Detected in 1982, this bacterium is typically transmitted through contaminated food and has caused outbreaks of haemolytic uraemic syndrome in North America, Europe and Japan.