Candida albicans

• forms hyphae when invasive
• normal flora of mouth, skin, and intestine
• causes Candiasis (yeast infection) and thrush 

Clostridium perfringens

• Gram-positive rod
• spore forming
• anaerobic
• causes gas gangrene 

Mycosporum canis

• vector is cats and dogs
• causes Tinea (ringworm)

Nisseria gonorrhoeae

• STD
• Gram-negative diplococci
• intracellular
• looks similar to Moraxella
• non-capsulates
• grows on chocolate agar under CO₂ conditions

Polio virus (Picornovirus)

•  causes poliomyelitis
• vaccine attenuated or killed

Staphylococcus epidermidis

• Gram-positive
• catalase positive
• does not ferment mannitol
• novobiacin sensitive
• diseases: opportunistic; UTI; infection of artificial joints; cathetar-related sepsis 

Streptococcus pneumoniae

• Gram-positive
• diplococci
• often capsulate
• alpha-hemolytic
• catalase negative
• Otochin septible
• disease: pneumonia; septicemia; meningitis 

Treponema pallidum

Campylobacter jejuni

• Slender, curved, Gram-negative rods
• diarrhea

Corynebacterium diphtheriae

Escherichia coli