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Unformatted text preview: DEVELOPMENT OF DISEASE 1. Incubation period—time between initial infection and first appearance of signs or symptoms. This can vary due to: a. Microorganism involved b. Virulence of infecting microbes c. Original number of invaders d. Resistance of the host 2. Prodromal period—early, mild symptoms 3. Illness—patient shows signs & symptoms of the disease. Usually the resistance of the host overcomes the pathogen and recovery begins. 4. Decline—patient improves and signs and symptoms taper off. 5. Convalescence—recovery occurs and person returns to original state of health. The infected person can spread the disease through all of these periods of the infection. SPREAD OF INFECTION RESERVOIRS OF INFECTION 1. Human reservoirs—many people carry pathogens and transmit them to others, directly or indirectly. These people may have signs and symptoms of the disease; or they may be in a period indirectly....
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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