parasitology case study questions pdf

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56-year-old Korean immigrant sought medical attention for non-specific abdominal pain and mild, intermittent diarrhea.

A 42-year-old State Park employee sought medical care due to fatigue, insomnia, intermittent bloating, and mild anemia.

A 45-year-old male who recently returned from a trip overseas to Korea presented to his primary care clinic for an annual checkup at a clinic in the United States.

During a field study in Cambodia, stool ova and parasite (O&P) examinations were performed on participants in rural villages. Unusual eggs were found in the formalin-ethyl acetate concentrated stool specimen of one middle-aged woman.

A 53-year-old woman from Florida presented to a dermatology clinic with a raised, itchy, red rash on her torso that persisted over the past six months and did not respond to topical treatments.

A 25-year-old man with fever and myalgia presented to an urgent care clinic in Pennsylvania, and no travel history was obtained at that time.

As part of a refugee screening program, a young child had a fecal ova and parasite (O & P) examination which included a formalin-ethyl acetate (FEA) fecal concentration.

At a regional diagnostic laboratory, where specimens from the southeastern United States are evaluated, the objects shown in Figures A and B were observed on a wet mount preparation from a fecal formalin-ethyl acetate (FEA) concentrate.

In Singapore, a 54-year-old man with an extensive travel history to Vietnam, Thailand, and France presented to a clinic with prolonged fever, urticarial rash, and muscle aches.

A 67-year-old male from Houston, TX sought medical evaluation following 3 days of abdominal pain, diarrhea, and fatigue after returning from a two-week summer vacation in Nairobi, Kenya.

An 18-year-old male living in India presented with recurrent periumbilical abdominal pain for one week. Other symptoms included mild anemia and eosinophilic leukocytosis.

A 24-year-old man from Thailand presented to his healthcare provider with complaints of gastrointestinal pain and weight loss. He also reported seeing thin worms in his stool on rare occasion.

A group of college students traveled to Brazil on a rafting and camping trip for two weeks. Malaria prophylaxis was highly recommended however one student declined.

A 58 year-old-man from Peru visiting relatives in the United States was killed in a traffic accident. An autopsy revealed cysts in his liver of which a few were excised and sent to pathology for identification.

A 4-year-old boy went for a routine medical examination with his parents after they returned from a one-year sabbatical, studying primates in their natural habitat in central Africa.

A 24-year-old female exchange student from Guinea reported to the clinic with headaches, itchy skin, and enlarged lymph nodes.

A 60-year-old non-smoking male patient presented to his primary care physician with a chronic cough and shortness of breath. He reported no recent travel outside of the Southern United States.

A 29-year-old female patient presented to her primary care physician reporting a 15-day history of whitish, vaginal discharge associated with itching.

A 3-year-old boy was seen by a pediatrician for gastrointestinal pain and watery diarrhea. His parents conveyed that he has a propensity for putting insects in his mouth and sometimes eating them.

A 29-year-old man sought medical attention with his health care provider with a complaint of itchy maculopapular rash on several areas of his body.

A 63-year-old man returned from visiting with family in Nigeria. He developed fever, chills and a mild headache three days before presenting to the clinic.

A 69-year-old male patient from a rural town in Georgia experiencing symptoms of productive cough with blood, hematochezia (rectal bleeding) and chest pain sought medical attention at the county health clinic.

DPDx is an educational resource designed for health professionals and laboratory scientists. For an overview including prevention, control, and treatment visit www.cdc.gov/parasites/ .

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Parasitology Review Questions for the National Boards

Related Papers

Khoiriyah Silalahi

Jacques Guillot

sara alsuhaimi

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Luis Carvalho , Ana Margarida Alho

Drugs used in the control of internal and external parasites in companion animals play a crucial role inAnimal and Public Health. To ensure continuing protection, these drugs should be administered regularlyand in intervals, as suggested by the manufacturers. To assess parasite control practices and other relatedfactors, including the degree of public awareness on the topic, 312 dog and cat owners were surveyedwhile attending the Small Animal Hospital, Faculty of Veterinary Medicine, Lisbon University.Results showed that 89.7% of the dogs were currently being treated with endoparasitic drugs. Of these,74.3% were dewormed every four months or longer and merely 11.8% with the recommended treatmentregimen (minimum quarterly). In cats, 63.6% were being treated with endoparasitic drugs and 85.7% ofthese were irregularly dewormed every four months or longer and merely 5.5% with the recommendedtreatment regimen (minimum quarterly). Combinations of praziquantel, pyrantel embonate and febantelwere the most commonly used drugs in dogs, whereas macrocyclic lactones were more frequently used incats. Regarding external parasitic control, 92.2% of the dogs were being treated, 50.5% of these at monthlyintervals (all-year round or seasonally). The most common ectoparasitic drug formulation used on dogswas the spot-on imidacloprid + permethrin (89%). Only 28.4% of the dogs were uninterruptedly protectedthroughout the year from the main canine vector borne diseases transmitted by fleas, ticks, sandflies andmosquitoes. Merely 63.6% of the cats were being controlled with ectoparasitic drugs, most at infrequentdrug intervals and imidacloprid was the most frequently used drug on cats (44.4%).Additionally, 85% of the respondents had never heard of the word “zoonosis” and 37% of them did notcollect their dog’s faeces in all public places. Scabies, toxoplasmosis and leishmaniasis were the mostfrequent parasitic diseases identified by the public in this survey.Although the majority of pet owners give antiparasitic drugs, our results show that most of them donot follow the manufacturers recommendations, deworming at irregular and consequently ineffectiveintervals. Therefore, it is of utmost importance for the veterinarians to educate pet owners regardingparasite cycles, methods of prevention and transmission mechanisms, as well as to follow the drug rec-ommendations, in order, respectively, to increase their awareness and thereby improve the effectivenessof the available control measures.

Veterinary Parasitology: Regional Studies and Reports

Christina Loftin

Trends in Parasitology

Dwight Bowman

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria

Keyla Sousa

The role of several feline vector-borne pathogens (FVBP) as a cause of disease in cats has not been clearly determined. In fact, with the exception of Bartonella spp. and hemoplasmas, FVBP in cats has not been clearly determined in Brazil yet. The present study aimed at identifying, by using molecular methods, the presence of FVBP in three cats showing non-specific clinical signs and inclusions suggestive of hemoparasites in blood smears. Cytauxzoon felis, 'Candidatus Mycoplasma haemominutum', Ehrlichia sp. closely related to Ehrlichia canis, and Anaplasma sp. closely related to Anaplasma phagocytophilum were detected in blood samples from two out of three sampled cats. Both cats positive for multiple FVBP did not show hematological and biochemical abnormalities. The present work emphasizes the need for molecular confirmation of co-infection by multiple FVBP in cats presenting non-specific clinical signs and inclusions resembling hemoparasites in blood smears.

Karine Chalvet-monfray , B. Losson , Jacques Guillot

Mohammad Rifky

curious?...dig it.

Parasitology multiple choice questions and answers pdf

Here are the important Parasitology multiple choice questions and answers pdf.

• The disease known as “ cat-scratch disease ” is caused by which parasite? a) Toxoplasma gondii b) Babesia microti c) Trypanosoma cruzi d) Leptospira spp. Answer: a) Toxoplasma gondii
• Which parasitic infection is transmitted through the ingestion of raw or undercooked freshwater snails and can lead to liver and lung problems? a) Schistosomiasis b) Clonorchiasis c) Filariasis d) Babesiosis Answer: a) Schistosomiasis
• What is the common name for the tapeworm Hymenolepis nana when it infects humans? a) Dwarf tapeworm b) Giant tapeworm c) Dog tapeworm d) Beef tapeworm Answer: a) Dwarf tapeworm
• Which parasite is responsible for causing malaria in humans? a) Plasmodium vivax b) Trypanosoma cruzi c) Entamoeba histolytica d) Toxoplasma gondii Answer: a) Plasmodium vivax
• What is the primary mode of transmission of the parasite responsible for Chagas disease ? a) Mosquito bites b) Sandfly bites c) Contaminated water and food d) Sexual transmission Answer: a) Mosquito bites
• Which parasitic infection is commonly associated with the consumption of undercooked pork? a) Malaria b) Giardiasis c) Trichinosis d) Schistosomiasis Answer: c) Trichinosis
• What is the vector responsible for transmitting the parasite causing African sleeping sickness? a) Tsetse fly b) Mosquito c) Blackfly d) Flea Answer: a) Tsetse fly
• Which parasitic infection is known as “swimmer’s itch” and is associated with exposure to contaminated water? a) Cryptosporidiosis b) Schistosomiasis c) Leishmaniasis d) Taeniasis Answer: b) Schistosomiasis
• Which parasite is responsible for causing visceral leishmaniasis (kala-azar)? a) Leishmania donovani b) Leishmania major c) Leishmania infantum d) Leishmania braziliensis Answer: a) Leishmania donovani
• What is the vector for the transmission of the parasite responsible for African river blindness? a) Tsetse fly b) Mosquito c) Blackfly (Simulium spp.) d) Sandfly Answer: c) Blackfly (Simulium spp.)
• Which parasitic infection is characterized by the presence of adult worms in the lymphatic system, causing swelling of the limbs and genitals? a) Filariasis b) Malaria c) Babesiosis d) Trypanosomiasis Answer: a) Filariasis
• The parasite Plasmodium falciparum is known for causing which specific form of malaria? a) Cerebral malaria b) Vivax malaria c) Ovale malaria d) Malarial hepatitis Answer: a) Cerebral malaria
• Which parasitic infection is commonly transmitted through the ingestion of contaminated water containing cysts? a) Toxoplasmosis b) Cryptosporidiosis c) Babesiosis d) Trypanosomiasis Answer: b) Cryptosporidiosis
• What is the primary mode of transmission for the parasite responsible for schistosomiasis? a) Mosquito bites b) Contaminated water c) Flea bites d) Sexual transmission Answer: b) Contaminated water
• Which of the following is a bloodborne parasite responsible for causing severe anemia and organ damage in tropical regions? a) Entamoeba histolytica b) Plasmodium vivax c) Trypanosoma brucei d) Schistosoma mansoni Answer: c) Trypanosoma brucei
• Which parasitic infection is transmitted through the bite of an infected sandfly and can cause disfiguring skin ulcers? a) Malaria b) Leishmaniasis c) Filariasis d) Giardiasis Answer: b) Leishmaniasis
• What is the name of the parasitic worm that causes a condition known as “elephantiasis” due to blockage of the lymphatic system? a) Schistosoma mansoni b) Wuchereria bancrofti c) Taenia solium d) Plasmodium falciparum Answer: b) Wuchereria bancrofti
• Which parasitic infection is associated with severe diarrhea, weight loss, and malabsorption of nutrients, and is commonly found in areas with poor sanitation? a) Taeniasis b) Giardiasis c) Leishmaniasis d) Filariasis Answer: b) Giardiasis
• What is the vector responsible for transmitting the parasite causing American trypanosomiasis (Chagas disease)? a) Mosquito b) Tsetse fly c) Triatomine bug (kissing bug) d) Flea Answer: c) Triatomine bug (kissing bug)
• Which parasite is responsible for causing river blindness in humans? a) Wuchereria bancrofti b) Onchocerca volvulus c) Trichinella spiralis d) Echinococcus granulosus Answer: b) Onchocerca volvulus
• The parasite Entamoeba histolytica primarily affects which organ in the human body? a) Liver b) Lungs c) Intestines d) Kidneys Answer: c) Intestines
• What is the common name for the blood fluke responsible for causing schistosomiasis? a) Roundworm b) Flatworm c) Hookworm d) Whipworm Answer: b) Flatworm
• Which parasite is associated with the transmission of diseases like sleeping sickness and nagana in Africa? a) Plasmodium falciparum b) Trypanosoma spp. c) Leishmania spp. d) Toxoplasma gondii Answer: b) Trypanosoma spp.
• The parasite Trypanosoma cruzi is responsible for which disease in humans? a) Malaria b) African sleeping sickness c) Chagas disease d) Leishmaniasis Answer: c) Chagas disease
• What is the definitive host for the tapeworm Taenia saginata? a) Humans b) Dogs c) Cattle d) Pigs Answer: c) Cattle
• Which parasitic infection is known for causing fever and “bull’s eye” skin rashes and is transmitted by ticks? a) Babesiosis b) Filariasis c) Taeniasis d) Malaria Answer: a) Babesiosis
• What is the name of the parasitic worm that can cause an infection known as “hydatid disease” when humans ingest contaminated food or water? a) Taenia solium b) Wuchereria bancrofti c) Echinococcus granulosus d) Onchocerca volvulus Answer: c) Echinococcus granulosus
• Which parasitic infection is transmitted through the ingestion of raw or undercooked freshwater fish and can lead to severe liver and lung problems? a) Clonorchiasis b) Onchocerciasis c) Babesiosis d) Trypanosomiasis Answer: a) Clonorchiasis
• What is the primary mode of transmission for the parasite responsible for African sleeping sickness? a) Contaminated food and water b) Tsetse fly bite c) Mosquito bite d) Sandfly bite Answer: b) Tsetse fly bite
• Which parasite causes the condition known as “swimmer’s itch”? a) Taenia solium b) Schistosoma mansoni c) Plasmodium vivax d) Toxoplasma gondii Answer: b) Schistosoma mansoni
• What is the definitive host for the parasite responsible for human malaria? a) Mosquito b) Humans c) Monkeys d) Dogs Answer: a) Mosquito
• Which parasitic infection is transmitted through the bite of infected ticks and can cause symptoms such as joint pain and fever? a) African trypanosomiasis b) Lyme disease c) Giardiasis d) Trichinosis Answer: b) Lyme disease
• The parasite responsible for causing giardiasis primarily affects which part of the digestive system? a) Stomach b) Small intestine c) Large intestine d) Colon Answer: b) Small intestine
• What is the primary mode of transmission for the parasite responsible for toxoplasmosis? a) Contaminated water b) Direct contact with infected animals c) Sandfly bite d) Mosquito bite Answer: b) Direct contact with infected animals
• Which parasitic infection is transmitted through the bite of infected triatomine bugs and can lead to cardiac and gastrointestinal complications? a) Filariasis b) African sleeping sickness c) Chagas disease d) Onchocerciasis Answer: c) Chagas disease
• The parasitic infection known as “pinworm” is caused by which parasite? a) Taenia solium b) Enterobius vermicularis c) Schistosoma mansoni d) Leishmania donovani Answer: b) Enterobius vermicularis
• Which parasite is responsible for causing the disease known as “African eye worm”? a) Wuchereria bancrofti b) Onchocerca volvulus c) Loa loa d) Plasmodium falciparum Answer: c) Loa loa
• The parasite Leishmania donovani is primarily associated with which form of leishmaniasis? a) Cutaneous leishmaniasis b) Visceral leishmaniasis c) Mucocutaneous leishmaniasis d) Ocular leishmaniasis Answer: b) Visceral leishmaniasis
• What is the vector responsible for transmitting the parasite that causes African river blindness? a) Tsetse fly b) Mosquito c) Blackfly (Simulium spp.) d) Sandfly Answer: c) Blackfly (Simulium spp.)
• Which parasite is responsible for causing amebic liver abscess, a condition characterized by the formation of liver lesions? a) Entamoeba histolytica b) Plasmodium falciparum c) Trypanosoma brucei d) Schistosoma mansoni Answer: a) Entamoeba histolytica
• Which of the following parasites is transmitted by the bite of female Anopheles mosquitoes? a) Trypanosoma cruzi b) Leishmania major c) Plasmodium spp. d) Taenia solium Answer: c) Plasmodium spp.
• What is the name of the parasitic worm responsible for causing schistosomiasis in humans? a) Roundworm b) Flatworm c) Hookworm d) Tapeworm Answer: b) Flatworm
• The disease known as “sleeping sickness” is caused by which parasite? a) Plasmodium spp. b) Trypanosoma spp. c) Leishmania spp. d) Toxoplasma gondii Answer: b) Trypanosoma spp.
• Which parasitic infection is transmitted by contact with contaminated soil and can cause severe skin ulcers and lesions? a) Babesiosis b) Onchocerciasis c) Leishmaniasis d) Clonorchiasis Answer: c) Leishmaniasis
• What is the common name for the tapeworm Taenia solium when it infects humans? a) Beef tapeworm b) Pork tapeworm c) Fish tapeworm d) Dog tapeworm Answer: b) Pork tapeworm
• The disease known as “rat-bite fever” is caused by which parasite? a) Toxoplasma gondii b) Trypanosoma cruzi c) Leptospira spp. d) Babesia microti Answer: c) Leptospira spp.
• Which parasitic infection is associated with the ingestion of raw or undercooked freshwater fish and can lead to liver fluke infestations? a) Schistosomiasis b) Clonorchiasis c) Trichinosis d) Onchocerciasis Answer: b) Clonorchiasis
• What is the primary mode of transmission for the parasite responsible for African trypanosomiasis (sleeping sickness)? a) Mosquito bites b) Tsetse fly bites c) Contaminated water and food d) Sexual transmission Answer: b) Tsetse fly bites
• Which parasitic infection is transmitted through the ingestion of undercooked freshwater crabs and crayfish and can lead to severe lung symptoms? a) Malaria b) Clonorchiasis c) Filariasis d) Giardiasis Answer: b) Clonorchiasis
• What is the primary vector for the transmission of the parasite that causes lymphatic filariasis? a) Mosquito b) Tsetse fly c) Sandfly d) Blackfly Answer: a) Mosquito
• The parasite responsible for causing African trypanosomiasis (sleeping sickness) has two subspecies. What are their names? a) Trypanosoma brucei and Trypanosoma cruzi b) Trypanosoma vivax and Trypanosoma gambiense c) Trypanosoma rhodesiense and Trypanosoma brucei d) Trypanosoma leishmaniasis and Trypanosoma malariae Answer: c) Trypanosoma rhodesiense and Trypanosoma brucei
• Which parasitic infection is often referred to as “River Blindness” due to its impact on vision? a) Malaria b) Schistosomiasis c) Onchocerciasis d) Trichinosis Answer: c) Onchocerciasis
• The parasite responsible for causing Babesiosis is most commonly transmitted by which vector? a) Ticks b) Fleas c) Mosquitoes d) Lice Answer: a) Ticks
• Which parasitic infection is characterized by the presence of adult worms in the lymphatic system and can lead to a condition known as “elephantiasis”? a) Leishmaniasis b) Filariasis c) Clonorchiasis d) Babesiosis Answer: b) Filariasis
• What is the primary mode of transmission for the parasite responsible for pinworm infection? a) Contaminated food and water b) Mosquito bites c) Direct contact with infected individuals d) Sandfly bites Answer: c) Direct contact with infected individuals
• The parasite responsible for causing “swimmer’s itch” belongs to which group of parasites? a) Plasmodium b) Trypanosoma c) Schistosoma d) Onchocerca Answer: c) Schistosoma
• Which parasitic infection is transmitted through the ingestion of undercooked or raw freshwater fish and can lead to a condition known as “fluke infection”? a) Clonorchiasis b) Filariasis c) Leishmaniasis d) Toxoplasmosis Answer: a) Clonorchiasis
• What is the common name for the tapeworm Taenia saginata when it infects humans? a) Beef tapeworm b) Pork tapeworm c) Fish tapeworm d) Dog tapeworm Answer: a) Beef tapeworm
• The disease known as “Chagas disease” is named after the Brazilian physician who discovered it. What is his full name? a) Carlos Chagas b) Juan Chagas c) José Chagas d) Rafael Chagas Answer: a) Carlos Chagas
• The parasite responsible for causing leishmaniasis is a protozoan of the genus: a) Plasmodium b) Trypanosoma c) Leishmania d) Entamoeba Answer: c) Leishmania
• Which parasitic infection is associated with the transmission of diseases like Chagas disease and American trypanosomiasis? a) Plasmodium spp. b) Leishmania spp. c) Trypanosoma spp. d) Babesia spp. Answer: c) Trypanosoma spp.
• The parasitic infection known as “African eye worm” is caused by which parasite? a) Wuchereria bancrofti b) Onchocerca volvulus c) Loa loa d) Trypanosoma cruzi Answer: c) Loa loa
• What is the primary vector responsible for the transmission of the parasite causing malaria? a) Tsetse fly b) Mosquito c) Blackfly d) Sandfly Answer: b) Mosquito
• The parasite responsible for causing filariasis belongs to which group of parasites? a) Roundworms b) Flatworms c) Hookworms d) Tapeworms Answer: a) Roundworms
• The parasitic infection known as “rat lungworm disease” is caused by which parasite? a) Toxoplasma gondii b) Angiostrongylus cantonensis c) Babesia microti d) Plasmodium falciparum Answer: b) Angiostrongylus cantonensis
• What is the causative agent of amebic dysentery? a) Giardia lamblia b) Entamoeba histolytica c) Trichomonas vaginalis d) Toxoplasma gondii Answer: b) Entamoeba histolytica
• Which parasite is responsible for causing cutaneous leishmaniasis? a) Leishmania donovani b) Leishmania major c) Leishmania infantum d) Leishmania braziliensis Answer: b) Leishmania major
• What is the primary definitive host for the tapeworm Taenia solium? a) Humans b) Dogs c) Cattle d) Pigs Answer: a) Humans
• Which parasitic infection is associated with the ingestion of contaminated cat feces or undercooked meat? a) Malaria b) Toxoplasmosis c) Trypanosomiasis d) Pinworm infection Answer: b) Toxoplasmosis
• Which protozoan parasite is responsible for causing African trypanosomiasis (sleeping sickness)? a) Trypanosoma brucei b) Trypanosoma cruzi c) Trypanosoma lewisi d) Trypanosoma gambiense Answer: a) Trypanosoma brucei

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