Exam 14: Staphylococci

A woman in her 20s goes to her physician complaining of burning upon urination, frequency, and general malaise.Her physician does a urine culture, and it grows out 25,000 colony-forming units (CFU)/mL of a catalase-positive, coagulase-negative, novobiocin-resistant gram-positive cocci.What is the most likely pathogen?

What disease is an extensive exfoliative dermatitis caused by staphylococcal exfoliative toxin?

The two most common species of coagulase-negative staphylococci are:

What antibiotic is used for detection of methicillin resistance?

The development of staphylococcal infection is determined by:

What are the effects of the b-hemolysin produced by Staphylococcus aureus?

Later in the evening, after attending a family reunion, several family members went to the emergency department after experiencing nausea, vomiting, abdominal pain, and severe cramping.When questioned about the food at the family reunion, the menu included fried chicken, hot dogs, hamburgers, potato salad, deviled eggs, éclairs, and cheesecake.The symptoms appeared about 4 hours after they ate.What is the most probable explanation for these symptoms?

Staphylococci are catalase-positive, gram-positive cocci that resemble other bacteria that are members of what family?

The primary reservoir for staphylococci is:

Which staphylococcal species is associated with urinary tract infections in young, sexually active females?

All of the following is used to describe the colonial morphology of Staphylococcus epidermidis except:

What are the effects of the a-hemolysin produced by Staphylococcus aureus?

Automated antimicrobial susceptibility testing methods are not reliable in detecting these resistant staphylococci.What antibiotic are the bacteria resistant to?

Infections by which organism are predominantly hospital acquired, and some predisposing factors include catheterization, medical implantation, and immunosuppressive therapy?