1. acquired immunity does not exist
2. use of oral contraceptives laters the local mucosal environment in favor of the pathogen.
3. symptoms in females are so mild that often the disease may be unrecognized
What are the reasons gonococcus infections remain relatively high?
500
unpasterized milk, cheese, deli meats
What is Listeria monocytogenes?
500
produces inducible beta-lactamases
What are Citrobacter, Enterobacter, Morganella, Serratia, ?
500
Summer 1976 - pneumonia outbreak occurring during a convention of the American Legion