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Normal homeostasis in the lung is suggested to involve significant cell turnover ( apoptosis and replacement ) and , disruption of these processes are implicated in a number of inflammatory and non-inflammatory pulmonary diseases . It will introduce the development , structure and function of the human body , and mechanisms involved in degenerative infectious diseases . HIV disease itself may cause dry mouth because HIV-related salivary disease causes swollen salivary glands ( glands in the mouth that produce saliva , or spit ) . Acute infection with a hepatitis virus may result in conditions ranging from subclinical disease to self-limited symptomatic disease to fulminant hepatic failure . This program also serves the Upper Midwest and evaluates approximately 60 new patients for primary or secondary immunodeficiency , or immuno-deficiency-related infectious diseases each year .