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Unformatted text preview: Many viruses are causative agents: 1) Rhino viruses- most common, approx. 100 types, limited to nasal passage. 2) Reoviruses- part of normal flora in some individuals. Infections usually mild, low grade. 3) Corona viruses- can cause colds, mild pneumonia, acute respiratory disorders, gastroenteritis 4) Parainfluenza- in adults limited to URT. In children & infants more severe - pneumonia, croup. 5) Respiratory Syncytial Virus (RSV) - mild infections in adults; serious LRT infections in young children (<1 yr.) - pneumonia (mortality rate 20%) 6) Adenoviruses- common colds, flu-like illnesses Virulence: invade m.m. respiratory tract cell lysis inflammation Transmission: URT secretions - hands, fomites P/E: nasopharynx Immunity: Questionable. No vaccine at present. Complications: Secondary bacterial infections (ear infections, pharyngitis, laryngitis, epiglottitis, bronchitis, sinusitis, pneumonia)...
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This note was uploaded on 01/23/2012 for the course MCB MCB2010 taught by Professor Smith during the Fall '09 term at Broward College.
- Fall '09