Protists and Disease

What type of protozoa causes sleeping sickness and Chagas disease?

• Flagellate protozoa

• Ciliate protozoa

• Sporozoan protozoa

• Amoeboid protozoa

How are the protozoa that cause Chagas disease spread to human hosts?

• Through contaminated food or water

• Through direct contact with infected individuals

• Through inhalation of airborne particles

• Through insect vectors

What is the main symptom of giardiasis?

• Fever

• Joint pain

• Abdominal pain

• Anemia

Which protozoa cause malaria?

• Trypanosoma protozoa

• Giardia protozoa

• Plasmodium protozoa

• Amoeba protozoa

Why is malaria commonly found only in tropical and subtropical regions of the world?

• Due to the presence of specific mosquito vectors

• Due to poor sanitation and hygiene practices

• Due to genetic susceptibility of the population

• Due to lack of medical facilities

What is the most common symptom of malaria?

• Fever

• Joint pain

• Abdominal pain

• Anemia

How did Terri most likely become infected with a protozoan infection?

• Through contaminated food or water

• Through direct contact with infected individuals

• Through inhalation of airborne particles

• Through drinking water from a stream

What is the vector for Chagas disease?

• Mosquito

• Tick

• Flea

• Kissing bug

What is the vector for malaria?

• Mosquito

• Tick

• Flea

• Kissing bug

Why was Carlos Chagas' discovery of Chagas disease unique to the medical community?

• He identified the pathogen, vector, host, symptoms, and mode of transmission of the disease

• He developed a vaccine for the disease

• He discovered a new species of protozoa

• He conducted the first clinical trials for the disease