MICR3001 Study Guide - Final Guide: Respiratory Tract Infection, Bile Acid, Coronavirus
Document Summary
The respiratory and gastro-intestinal tracts are arguably the most common portals of entry for a range of different viruses. Highlight and discuss both the common and distinct features of viral infection at these two sites using examples of each. Total surface area about the size of a tennis court. Used for viruses that cause local respiratory infections: eg. Can cause asymptomatic initial infection, then generalised spread: eg. Used for viruses that cause local infection: eg. produce diarrhoea, eg. Virus enters through the git, but not main target: eg. Hepatitis: due to invasion of tissues underlying mucosal layer. Virus survival depends on: acid stability, resistance to bile salts. Inactivation by proteolytic enzymes: can resist and manipulate the above factors for own viral use. Mostly non-enveloped viruses: enveloped are usually more fragile and easy to degrade. Neurological disease is a relatively uncommon consequence of virus infection. Discuss the range of clinical consequences of viral infection in the.
