micro chapter 12

Assignment to Chapter 12

Infections on Respiratory System

BIOL 200 (Microbiology) lecture

CASE PRESENTATION

The patient is a college student, complaining with sore throat, feeling not really ill, and planning NOT to go to campus clinic. After arguing with her roommate (majoring in microbiology) she agree to visit the clinic.

At the clinic, the nurse run a rapid strep test (RST). She swabbed the back of the throat and use in office kit to immediately determine whether Streptococcus pyogenes was present in the sample. Test was (-, negative). Doctor sent the sample down to the clinical lab and sent student back home with prescription of antibiotic (WHICH ONE DO YOU THINK HE PRESCRIBED IT?). 24 HOURS LATER student receive a message from the nurse to start taking the antibiotic immediately.

QUESTIONS:

1. Consider that student had had a strep throat two years ago, why would she develop it again?

2. Why would the RST be negative when student in fact have strep throat?

3. Why was the student given antibiotic (which one?) to treat her infection?

4. Why is important to treat strep throat promptly?

5. Why are there NO vaccines against S. pyogenes?

Describe briefly:

What is the type/name of this infection?

Signs and Symptoms -

Causative agent -

Pathogenesis -

Epidemiology -

Treatment –

Prevention –