1. Gram-positive bacteria examples: Answer staph (MRSA, MSSA) strep (non-purulent cellulitis, strep pyrogenes (throat), strep pneumoniae (lungs) enterococcus (urinary tract) c. diff hint: If its not one of these common four, it may be gram negative 2. less common gram positive bacteria: Answer listerosis diphtheria Botulismtetanus anthrax 3. Gram-negative bacteria: Answer neisseria gonorrhea meningitides E. coli pasteurella rickettsia (RMSF)psuedomonis legionella mycoplasma pneumoniae chlamydophila pneumoniae 4. Atypical Pathogens: Answer M.pneumonia, C.pneumonia, legionella 5. Beta-lactam antibiotics: Answer penicillins and cephalosporins 6. IgE mediated reaction: Answer also called a classic anaphylactic reaction