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113lecture3606slides - Microbial Diseases of the Digestive...

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Microbial Diseases of the Digestive System Viral and Protozoan Diseases Mumps • Agent is a paramyxovirus • Transmitted by the respiratory route, systemic spread leads to colonization and inflammation of parotid salivary glands • Complications may include inflammatory damage to testes ( orchitis ), meninges, ovaries, pancreas • Controlled with an attenuated vaccine (MMR) Viral Hepatitis - Hepatitis A • Agent is a naked RNA virus Infectious hepatitis • Transmission is fecal-oral • Asymptomatic infection is common, may contribute to transmission • Disease is acute, leading to strong immunity • Killed vaccine available, but not universal
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Viral Hepatitis - Hepatitis B Agent is an enveloped DNA virus Serum hepatitis Sexual and other direct contact transmission, also through contaminated blood Occupational hazard for health care and emergency workers Concern is that some infections become chronic Chronic carriers are a persistent source of transmission
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This note was uploaded on 11/24/2011 for the course BIO 113 taught by Professor Staff during the Fall '09 term at Rutgers.

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113lecture3606slides - Microbial Diseases of the Digestive...

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