Protozoan Disease Quiz

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Protozoan Disease Quiz - Quiz

Directions: Read each question carefully below before answering. Choose the best answer for each question. You will have 20 minutes to take the quiz and you may only attempt the quiz one time. After completion of the quiz you will receive a digital grade certificate.


Questions and Answers
  • 1. 

    This disease is passed by mosquitoes that feed off infected birds and causes inflammation of brain and nervous system.

    • A.

      Chagas Disease

    • B.

      Giardiasis

    • C.

      Leishmaniasis

    • D.

      Toxoplasmosis

    • E.

      West Nile Virus

    • F.

      African Sleeping Sickness

    Correct Answer
    E. West Nile Virus
    Explanation
    The correct answer is West Nile Virus. This disease is transmitted through mosquitoes that become infected by feeding on birds carrying the virus. When humans are bitten by these infected mosquitoes, they can contract the virus, which can lead to inflammation of the brain and nervous system.

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  • 2. 

    This disease is caused by the parasite T. gondii oocysts that are passed to humans via contaminated water or infected cats that release the oocysts in their feces. 

    • A.

      Chagas Disease

    • B.

      Giardiasis

    • C.

      Leishmaniasis

    • D.

      Toxoplasmosis

    • E.

      West Nile Virus

    • F.

      African Sleeping Sickness

    Correct Answer
    D. Toxoplasmosis
    Explanation
    Toxoplasmosis is caused by the parasite T. gondii, which can be transmitted to humans through contaminated water or by coming into contact with infected cats that release the parasite's oocysts in their feces. This parasite can infect various organs in the human body, including the brain, and can cause flu-like symptoms in healthy individuals. However, it can be particularly dangerous for pregnant women and individuals with weakened immune systems. Therefore, the given correct answer is Toxoplasmosis.

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  • 3. 

    This disease is most commonly found in sub-Saharan Africa and is spread by the tsetse fly. 

    • A.

      Chagas Disease

    • B.

      Giardiasis

    • C.

      Leishmaniasis

    • D.

      Toxoplasmosis

    • E.

      West Nile Virus

    • F.

      African Sleeping Sickness

    Correct Answer
    F. African Sleeping Sickness
    Explanation
    African Sleeping Sickness is caused by the parasite Trypanosoma brucei, which is transmitted to humans through the bite of the tsetse fly. This disease is most commonly found in sub-Saharan Africa, where the tsetse fly is prevalent. The parasite affects the central nervous system, leading to symptoms such as fatigue, sleep disturbances, and neurological problems. Therefore, African Sleeping Sickness is the correct answer based on the information provided.

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  • 4. 

    Early signs of this disease can include enlargement of glands in the neck which is historically termed the "Winterbottom sign" in recognition of the doctor who first noticed this sign in patients diagnosed with the disease.

    • A.

      Chagas Disease

    • B.

      Giardiasis

    • C.

      Leishmaniasis

    • D.

      Toxoplasmosis

    • E.

      West Nile Virus

    • F.

      African Sleeping Sickness

    Correct Answer
    F. African Sleeping Sickness
    Explanation
    The correct answer is African Sleeping Sickness. African Sleeping Sickness, also known as African trypanosomiasis, is a parasitic disease caused by the protozoan parasite Trypanosoma brucei. One of the early signs of this disease is the enlargement of glands in the neck, which is referred to as the "Winterbottom sign." This sign was first observed by a doctor named Winterbottom in patients diagnosed with African Sleeping Sickness.

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  • 5. 

    This disease causes lesions on the skin. Sometimes the infection occurs on the skin of the face, eating away at the nose and mouth leaving a large hole in the face of the infected individual.

    • A.

      Chagas Disease

    • B.

      Giardiasis

    • C.

      Leishmaniasis

    • D.

      Toxoplasmosis

    • E.

      West Nile Virus

    • F.

      African Sleeping Sickness

    Correct Answer
    C. Leishmaniasis
    Explanation
    Leishmaniasis is a parasitic disease caused by the Leishmania parasite. It is transmitted through the bite of infected female sandflies. The disease can cause lesions on the skin, and in some cases, the infection can occur on the skin of the face, leading to the destruction of tissues and the formation of large holes. Therefore, Leishmaniasis is the most suitable explanation for the given symptoms.

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  • 6. 

    The first documented outbreak of this disease in the United States occurred in 1999 in the state of New York. 

    • A.

      Chagas Disease

    • B.

      Giardiasis

    • C.

      Leishmaniasis

    • D.

      Toxoplasmosis

    • E.

      West Nile Virus

    • F.

      African Sleeping Sickness

    Correct Answer
    E. West Nile Virus
    Explanation
    The first documented outbreak of the West Nile Virus in the United States occurred in 1999 in the state of New York. This virus is primarily transmitted through mosquito bites and can cause a range of symptoms, from mild flu-like symptoms to severe neurological complications. The outbreak in New York raised awareness about the presence of the virus in the United States and led to increased surveillance and control measures to prevent its spread.

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  • 7. 

    This disease is caused by the protozoan trypanosome brucii and there is currently a vaccine available to fight the infection of this disease.  

    • A.

      Chagas Disease

    • B.

      Giardiasis

    • C.

      Leishmaniasis

    • D.

      Toxoplasmosis

    • E.

      West Nile Virus

    • F.

      African Sleeping Sickness

    Correct Answer
    F. African Sleeping Sickness
    Explanation
    African Sleeping Sickness is caused by the protozoan trypanosome brucii. This disease is characterized by symptoms such as fever, fatigue, and sleep disturbances. It is transmitted to humans through the bite of infected tsetse flies. The statement also mentions that there is currently a vaccine available to fight the infection of this disease, indicating that efforts have been made to control and prevent its spread.

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  • 8. 

    Other than causing delayed reactions in infected hosts, this protozoan that causes this disease can harbor in the eye and eat away at the retina eventually causing blindness.

    • A.

      Chagas Disease

    • B.

      Giardiasis

    • C.

      Leishmaniasis

    • D.

      Toxoplasmosis

    • E.

      West Nile Virus

    • F.

      African Sleeping Sickness

    Correct Answer
    D. Toxoplasmosis
    Explanation
    Toxoplasmosis is caused by a protozoan parasite called Toxoplasma gondii. It is known to cause delayed reactions in infected hosts, but it can also infect the eye and specifically target the retina. Over time, the parasite can cause damage to the retina, leading to blindness. Therefore, Toxoplasmosis is the correct answer as it is the only disease mentioned that fits this description.

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  • 9. 

    This disease was first observed by Leeuwenhoek after he discovered parasitic organisms in his stool under the microscope. 

    • A.

      Chagas Disease

    • B.

      Giardiasis

    • C.

      Leishmaniasis

    • D.

      Toxoplasmosis

    • E.

      West Nile Virus

    • F.

      African Sleeping Sickness

    Correct Answer
    B. Giardiasis
    Explanation
    Giardiasis is a disease caused by a parasitic organism called Giardia. The statement mentions that Leeuwenhoek observed parasitic organisms in his stool under the microscope, which aligns with the characteristics of Giardia. Therefore, Giardiasis is the most suitable answer based on the information provided.

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  • 10. 

    A common physical characteristic of infection from this disease is swelling of the eyelids on the side of the face near the bite wound or where the kissing bug feces was deposited or accidentally rubbed into the eye.

    • A.

      Chagas Disease

    • B.

      Giardiasis

    • C.

      Leishmaniasis

    • D.

      Toxoplasmosis

    • E.

      West Nile Virus

    • F.

      African Sleeping Sickness

    Correct Answer
    A. Chagas Disease
    Explanation
    Chagas Disease, also known as American trypanosomiasis, is caused by the parasite Trypanosoma cruzi. One common physical characteristic of infection from this disease is swelling of the eyelids on the side of the face near the bite wound or where the kissing bug feces was deposited or accidentally rubbed into the eye. This swelling, known as Romaña's sign, is a distinctive feature of Chagas Disease and can help in its diagnosis.

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  • 11. 

    This disease is most common in Latin American countries infecting anywhere between 8-10 million people living in endemic Latin American countries per year.

    • A.

      Chagas Disease

    • B.

      Giardiasis

    • C.

      Leishmaniasis

    • D.

      Toxoplasmosis

    • E.

      West Nile Virus

    • F.

      African Sleeping Sickness

    Correct Answer
    A. Chagas Disease
    Explanation
    Chagas Disease is the correct answer because it is stated that the disease is most common in Latin American countries, infecting millions of people living in endemic Latin American countries per year. This aligns with the information given in the question.

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  • 12. 

    The pathogen of this disease takes over the host cells by eating immune defense cells from inside as they travel to the host spleen or liver. Spleen removal can be an optional method of treatment for this disease. 

    • A.

      Chagas Disease

    • B.

      Giardiasis

    • C.

      Leishmaniasis

    • D.

      Toxoplasmosis

    • E.

      West Nile Virus

    • F.

      African Sleeping Sickness

    Correct Answer
    C. Leishmaniasis
    Explanation
    Leishmaniasis is caused by a parasite that infects the host's cells, particularly the immune defense cells. The parasite travels to the host's spleen or liver and takes over the cells from inside, weakening the immune system. As a potential treatment method, removing the spleen can help in managing the disease. Therefore, the correct answer is Leishmaniasis.

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  • 13. 

    The life cycle of this disease consists of amastigotes that develop in the sand fly and lose their flagella upon entering the host cell.

    • A.

      Chagas Disease

    • B.

      Giardiasis

    • C.

      Leishmaniasis

    • D.

      Toxoplasmosis

    • E.

      West Nile Virus

    • F.

      African Sleeping Sickness

    Correct Answer
    C. Leishmaniasis
    Explanation
    Leishmaniasis is caused by the protozoan parasite Leishmania, which is transmitted to humans through the bite of infected sand flies. The life cycle of Leishmania involves the development of amastigotes in the sand fly, which are then transmitted to a host when the sand fly bites. Once inside the host cell, the amastigotes lose their flagella and transform into a different stage of the parasite's life cycle. Therefore, the given statement accurately describes the life cycle of Leishmaniasis.

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  • 14. 

    This disease is characterized as one of the five most neglected diseases in the United States yet there is no current vaccine for the disease. The only vaccine currently under development is being developed for the treatment of infected sheep in New Zealand. 

    • A.

      Chagas Diseae

    • B.

      Giardiasis

    • C.

      Leishmaniasis

    • D.

      Toxoplasmosis

    • E.

      West Nile Virus

    • F.

      African Sleeping Sickness

    Correct Answer
    D. Toxoplasmosis
    Explanation
    Toxoplasmosis is characterized as one of the five most neglected diseases in the United States, indicating that it does not receive adequate attention or resources despite its impact. The fact that there is no current vaccine for the disease further emphasizes its neglected status. The mention of a vaccine being developed for the treatment of infected sheep in New Zealand suggests that efforts are being made to address the disease, but it is still in the development stage and not available for human use.

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  • 15. 

    Medicines for this disease contain the element antimony (Sb).

    • A.

      Chagas Disease

    • B.

      Giardiasis

    • C.

      Leishmaniasis

    • D.

      Toxoplasmosis

    • E.

      West Nile Virus

    • F.

      African Sleeping Sickness

    Correct Answer
    C. Leishmaniasis
    Explanation
    Leishmaniasis is a disease caused by parasitic protozoa of the Leishmania genus. The medicines used to treat this disease often contain the element antimony (Sb). Antimony compounds have been found to be effective against the parasites that cause Leishmaniasis, making them an important component of the treatment. Therefore, the presence of antimony in the medicines for this disease supports the identification of Leishmaniasis as the correct answer.

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  • 16. 

    This is the most common intestinal protozoan disease worldwide.

    • A.

      Chagas Disease

    • B.

      Giardiasis

    • C.

      Leishmaniasis

    • D.

      Toxoplasmosis

    • E.

      West Nile Virus

    • F.

      African Sleeping Sickness

    Correct Answer
    B. Giardiasis
    Explanation
    Giardiasis is the most common intestinal protozoan disease worldwide. It is caused by the parasite Giardia lamblia, which infects the small intestine and causes symptoms such as diarrhea, abdominal pain, and weight loss. The parasite is transmitted through contaminated food and water, making it a global health concern. Treatment usually involves medication to eliminate the parasite and alleviate symptoms.

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  • 17. 

    There are 1-2 million cases of this disease per year worldwide and each clinical case can either be a visceral, cutaneous, or mucocutaneous infection. 

    • A.

      Chagas Disease

    • B.

      Giardiasis

    • C.

      Leishamaniasis

    • D.

      Toxoplasmosis

    • E.

      West Nile Virus

    • F.

      African Sleeping Sickness

    Correct Answer
    C. Leishamaniasis
    Explanation
    Leishmaniasis is the correct answer because it is a disease caused by the Leishmania parasite and it is estimated that there are 1-2 million cases of this disease worldwide each year. Leishmaniasis can present in different clinical forms, including visceral (affecting internal organs), cutaneous (affecting the skin), or mucocutaneous (affecting both the skin and mucous membranes). Therefore, the given information matches with the characteristics of Leishmaniasis.

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