"Human Pathology"

Lancefield group A, beta hemolysis. Sensitive to bacitracin. Causes strep throat, rheumatic fever, and scarlet fever.

This yellow, shiny organism is known to cause wound infections and more famously, toxic shock syndrome.

This spore-forming, thermophilic organism is commonly used for germicidal and sporicidal testing due to its ability to withstand higher-than-normal temperatures.

Both of these strains of Serratia marcescens are colorless mutants when plated alone, but when grown together, they produce a red pigment.

No Lancefield group shown, alpha hemolysis. Bile solubility test positive, optochin sensitive. Causes pneumonia. 

Book & Downloadable Content Combo Reference

Students investigate the case of a family poisoned by household pesticides used to treat a bed bug problem.

Penicillium notatum is a deuteromycete that produces penicillin. It is available in normal and high-yield strains.

This organism is a common inhabitant of intestinal flora, and can be a major cause of urinary tract infection.

Kocuria rhizophila is also commonly known by the name Micrococcus luteus. This organism is commonly isolated from soil, and is frequently used to test antimicrobial efficacy in the food industry.

A Common Intestinal Flora Isolate, Demonstrates Alpha Hemolysis on Blood Agar Growth Medium

This organism is commonly isolated from soil, and depending upon the temperature of its environment, can produce a distinctive red pigment.

Hemolysis, the rupture of red blood cells, is induced by certain species of streptococcal bacteria that produce extracellular hemolysin.  Observe this phenomenon with this set of 3 non-pathogenic species

This organism is normal flora of human intestine and may be pathogenic in humans. This organism will grow in Sodium chloride solution.

This organism is occasionally isolated from soil, but most frequently from smegma- a secretion from male and female genitalia.

Normal flora of respiratory tract. Beta-lactamase positive. Also known by the name Branhamella catarrhalis