Indicate the appropriate order of the events in the life cycle of Leishmania spp.  Start with the step that takes place after the vector bites the human and regurgitates the promastigotes.

____________________ is the diagnostic method most useful in detection of extra-intestinal infections with Entamoeba histolytica.

A fibrous skin nodule is removed from the back of a patient from Central America.  A microfilaria seen upon microscopic examination of the nodule would be:

A 22-year-old male presents to his family physician complaining of fatigue, muscle pain, periorbital edema, and fever.  He denies travel outside the US.  The physician suspects infectious mononucleosis (IM); however, the serologic tests for IM are negative.  The complete blood count revealed a slightly elevated white blood cell count, and there was an increase of eosinophils on the differential.  Which of the following should be considered as a possible cause for the patient’s symptoms?

A formed stool is received in the laboratory at 3 am for ova and parasite exam.  Randy is working night shift and is certain that the workload will prevent examination of the specimen until 6 am when the next shift arrives.  Randy should:

Patients may acquire concurrent infection with Babesia microti and _______________________ because these organisms are transferred by the same arthropod vector.

An immunosuppressed patient is susceptible to auto-reinfection with which one of the following nematodes?

A 48-year old man was admitted to the hospital after complaining of fever and shortness of breath.  Radiographs revealed an enlarged heart and complete blood count smear results revealed rare C-shaped trypomastigote forms.  The patient was on active military duty years ago in the Panama Canal Zone.  The most likely parasite is:

Parasite hosts can be classified as:

This member of the Entamoeba genus is known to ingest white blood cells.