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This disease is associated with lakes and streams and infection leads to a watery diarrhea.

Which is the most common route of HIV transmission in the U.S.?

A six-year-old female was admitted to the hospital with 1-week history of fever with sore throat and headache.  She had been given an oral beta-lactam by a local physician.  The day before admission she had developed pain and swelling in her right ankle.  When evaluated on the day of admission, she was noted to have a pronounced systolic heart murmur consistent with mitral valve regurgitation.  The likely infectious agent:

An MCB 2000 student has acute onset of chills and fever with dry non-productive cough 48 hours after exposure to influenza virus.  The 48 hours between exposure and the beginning of symptoms is called: 

An example of a local pathogenic effect:

The ID50 of a bacterial pathogen is:

A nursing assistant presented with a 3-day history of 40°C fever and malaise.  Physical examination revealed jaundice, light-colored feces, and dark urine.  Liver enzyme analysis indicated liver function was elevated.  Blood cultures were negative for bacteria.  The likely route of transmission of his infectious disease:

The presence of excess phosphates in lakes and streams can lead to ________________.

Which of the following terms aptly describes the corona virus?

If an organism is capable of both cellular respiration and fermentation, which process would it prefer to use and why?