Exam 33: Eukaryotic Pathogens: Fungi, Protozoans, and Helminths

A patient arrives at the emergency room feeling extremely sick, with cycles of high fevers and chills and a severe headache. However, these symptoms are nonspecific and malaria may not be suspected if the patient is in a region where malaria is uncommon. If the medical professionals did not immediately consider malaria, which of the following test results would most strongly suggest the need for malaria testing (such as microscopic analysis of a blood smear)?

Plasmodium vivax causes a more serious form of malaria than does P. falciparum.

The most effective malarial control measure is to interrupt the life cycle of the parasite by eliminating the obligate host, the Anopheles mosquito.

Giardia is especially difficult to kill because they have cell membranes that are resistant to common disinfecting chemicals.

Hemoflagellates that cause tropical diseases such as sleeping sickness and Chagasʹ disease are all transmitted by

Systemic fungal infections are difficult to treat because active antifungal drugs may have significant host toxicity.

Giardia intestinalis and Trichomoniasis vaginalis lack ________ and have ________.

Systemic fungal infections are most commonly transmitted by

How are trypanosome diseases similar to malaria?

Many fungi produce ________ that can cause significant disease.

Parasitic helminths only disease in tropical regions; they do not cause disease in subtropical or temperate regions.

A common mechanism for fungal diseases is

Which of the following is the most common mode of transmission of infections caused by non-fungal eukaryotic parasites?

The organism causing giardiasis is a

What is the infective form of Entamoeba histolytica and Giardia intestinalis?

The most common form of leishmaniasis is visceral leishmaniasis.

Which approach is most effective for controlling malaria?

Eukaryotic human parasites are all respiratory aerobes.

Most fungi are harmless to humans, although certain superficial infections are quite common.

Athleteʹs foot is an example of a