Advanced Parasitology: Zoonosis and Diagnostic Techniques Quiz

The correct answer, ascarid Toxocara canis, commonly known as roundworm, is a parasitic worm that infects the intestines of dogs and is commonly transmitted through the oral/fecal route. It is also zoonotic, meaning it can be transmitted from animals to humans. A fecal flotation test is often used to diagnose this type of parasite in dogs.

The correct answer is ASCARID Toxocara cati, as it is a common feline parasite that can be transmitted to humans. Hookworm, Tapeworm, and Whipworm are also common parasites in cats but do not match the specific characteristics mentioned in the question.

These incorrect answers are common parasites in dogs and cats, but they do not match the specific transmission and detection methods described in the question. Toxascaris Leonina fits the description provided, making it the correct answer.

Hookworms have a direct life cycle, can infect both canines and felines, and can be transmitted through skin penetration or oral/fecal route. Tapeworms have an indirect life cycle involving an intermediate host, roundworms typically have a indirect life cycle and heartworms are transmitted through mosquito vectors.

Whipworm, scientifically known as Trichuris, is a type of parasite that infects various animals including dogs, cats, pigs, sheep, goats, and llamas. It has a direct life cycle, meaning they do not require an intermediate host. Whipworm ova are highly resilient and can remain infectious in the environment for long periods. This parasite is zoonotic, meaning it can be transmitted from animals to humans. Diagnosis of whipworm infection is commonly done through fecal flotation.

Lungworm Capillaria aerophila fits the description provided as it is a parasitic worm that infects the lungs of dogs, has a direct life cycle involving the ingestion of infected animal tissues, and can be diagnosed through fecal floatation to detect eggs in the feces. The incorrect answers provided are not lungworms but other common parasites of dogs with different life cycles and diagnostic methods.

The correct answer, Threadworm, refers to parasites such as Strongyloides stercoralis, Strongyloides westeri, Strongyloides papillosus, and Strongyloides ransomi that infect various animal species. Threadworm differs from the incorrect options, Hookworm, Roundworm, and Tapeworm, in terms of their specific characteristics and life cycles.

The parasites Isospora felis and Isospora spp. are protozoans commonly found in the feces of dogs, cats, and ruminants. They can be identified through a technique called fecal floatation.

Giardia spp. fits the description provided as a zoonotic protozoan parasite that causes gastrointestinal illness in humans and animals. Cryptosporidium spp. is also a waterborne protozoan parasite, but has a different life cycle and method of detection. Entamoeba histolytica is a different kind of protozoan that causes amoebiasis in humans. Trichomonas vaginalis is a sexually transmitted parasitic protozoan that does not match the given description.

In this question, the characteristics provided match those of the protozoan Toxoplasma gondii. Bacteria, worms, and viruses do not have the same life cycle requirements or zoonotic transmission as protozoa.

The correct answer, TAPE WORM (Dipylidium caninum), is a common parasite in dogs and cats that is transmitted to the intermediate host, the flea. The diagnosis often involves finding egg packets (ova) in the feces, known as squash smear.

The correct answer, TAPE WORM (Taenia pisiformis), matches the description provided in the question. Roundworm, liver fluke, and hookworm do not have canine as an intermediate host nor do they exhibit striated membrane or can be identified using a squash smear.

Parasite diagnosis often involves identifying specific characteristics like life cycle, host species, and diagnostic methods like fecal testing. In this case, the correct answer is Alaria canis, a fluke species with zoonotic potential commonly found in canines.

The question describes the characteristics of Paragonimus kellicotti, also known as a lung fluke. It is a parasitic organism that commonly infects dogs and cats, has a unique operculum structure, resides in the lungs of its host, and can be detected through a sugar fecal flotation test.

Nematodes of the Trichostrongyles species are commonly found in ruminants, including cattle, sheep, and goats. These parasites have a direct life cycle, are capable of causing zoonotic infections, can enter a state of hypobiosis in the host, and their eggs can be detected through fecal flotation. In contrast, cestodes are tapeworms, trematodes are flukes, and protozoa like coccidia are different types of parasites with distinct characteristics.

The correct answer is NEMATODES as Nematodirus sp. are large parasites commonly found in ruminants, detected through fecal floatation, and have zoonotic potential. Cestodes, Trematodes, and Protozoa are other types of parasites with different characteristics and transmission methods.

Threadworm (Strongyloides papillosus) matches all the characteristics mentioned in the question, making it the correct answer. Hookworm, tapeworm, and roundworm have different characteristics and life cycles compared to the one described.

Ruminants can be infected by a variety of parasites, but in this case, the correct answer is ASCARIDS specifically Toxocara vitulorum. Ruminants are often screened for parasites through fecal floatation, a common diagnostic technique.

The correct answer is Lungworm (Dictyocaulus filaria), which is a parasitic worm that infects the lungs of sheep and goats. It is diagnosed using the Baermann technique, which involves collecting fecal samples and isolating the larvae. Roundworm, hookworm, and tapeworm are different types of parasites with distinct characteristics and diagnostic techniques.

Dictyocaulus viviparus is commonly known as Lungworm. Roundworms, tapeworms, and hookworms are different types of parasites that infect animals but do not match the description provided in the question.

The parasite described in the question, known as lungworm, is a type of roundworm that infects the respiratory system of goats and sheep. It can be identified using the Baermann's technique due to its characteristic double tail.

The presence of protozoan Eimeria sp. can be detected using fecal floatation in ruminants with an obvious operculum. Nematodes, cestodes, and trematodes are different types of parasites that may require different diagnostic methods.

The correct answer is Protozoan Cryptosporidium parvum because it fits the description provided in the question.

The correct answer is CESTODES because Moniezia benedeni is specific to cattle and Moniezia expansa is specific to sheep amongst cestodes.

The correct answer is Trematodes - specifically Fasciola hepatica, which is known to infect cattle causing liver migration. The indirect life cycle involves a slug as the initial host. Fecal floatation can be used for diagnosis. Cestodes, Nematodes, and Protozoa mentioned in the incorrect answers do not align with the described characteristics and life cycle in the question.

ASCARIDS, specifically Parascaris equorum, fit the description provided in the question. Trichuris vulpis, Toxocara canis, and Giardia duodenalis are not equine parasites and do not match the characteristics mentioned.

The correct answer, ASCARID Strongyles sp., refers to a type of parasitic roundworm commonly found in horses. While tapeworms, hookworms, and whipworms are all parasites that can affect animals, in this context, ASCARID Strongyles sp. is the most relevant due to its specific characteristics.

The correct answer, THREADWORM (Strongyloides westeri), is a parasitic worm that commonly infects horses and other equines. It is often transmitted through larvaded ova and can be zoonotic, meaning it can be transferred from animals to humans. Fecal flotation is a common diagnostic method for detecting this parasite.

The correct answer is PINWORM (Oxyuris equi) which fits all the given characteristics. Roundworm, Tapeworm, and Hookworm are also common equine parasitic infections but do not match all the specific characteristics mentioned.