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| Accidental (or incindental) Host |
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Definition
| Infection of a host other than the normal host species. A parasite may or may not continue full development in an accidental host. |
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| A host harboring a parasite but exhibiting no clinical signs or symptoms. |
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| The association of two different species of organisms in which one partner is benefited and the other is neither benefited nor injured. |
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| The animal in which a parasite passes its adult existence, sexual reproductive phase, or both. |
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| A taxanomic category subordinate to family (and tribe) and superior to species, grouping those organisms that are alike in broad features but different in detail. |
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| The species of animal or plant that harbors a parasite and provides some metabolic resources to the parasitic species. |
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| Observable in a test tube or other nonliving system. |
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| Invasions of the body by a pathogenic organism (except arthropods), with accompanying reaction of the host tissues to the presence of the parasite. |
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| The establishment of arthropods on or within a host (including insects, ticks, and mites). |
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Definition
| The animal in which a parsite passes its larval stage or asexual reproduction phase. |
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| A parasite that cannot live apart from its host. |
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| An animal that harbors a species of parasite that is also parasitic for humans and from which a human may become infected. |
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Definition
| A taxonomic category subordinate to a genus. A species maintains its classification by not interbreeding with other species. |
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Definition
| The association of two different species of organisms exhibiting metabolic dependence by their relationship. |
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Definition
| Any arthropods or other living carriers that transport a pathogenic microorganism from an infected to a noninfected host. A vector may transmit a disease passively (mechanical vector) or may be an essential host in the life cycle of the pathogenic organism (biological vector). |
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Definition
| A disease involving a parasite that has accidentally infected a human; the normal host for the parasite is an animal. |
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| Oral cavity of roundworms. |
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| Needlelike bodies possessed by some male nematodes; spicules lie in pouches near the ejaculatory duct and may be inserted in the vagina of the female worm during copulation. |
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Definition
| A disease caused by the migration of larvae of Ancylostoma spp. (dog or cat hookworm) or other helminth larvae traveling under the skin of humans. |
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Definition
| A developmental stage of a pathogenic organism that can be detected in human body secretions, discharges, feces, blood, or tissue by chemical means or microscopic observations. Identification serves as an aid in diagnosis. |
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Definition
| Occurring during the daytime. |
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Definition
| Unusual excess fluid in tissue, causing swelling. |
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Definition
| Overgrowth of the skin and subcutaneous tissue in limbs or genitalia resulting from obstructed circulation in the lymphatic vessels; can occur in the presence of some long-term chronic filaria infections. |
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Definition
| Inflammation of the intestine. |
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Definition
| High levels of circulating eosinophils in the blood. |
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Definition
| A nematode worm of the order Filariata; requires an arthropod intermediate host for transmission of infection to humans. |
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Definition
| Infective, nonfeeding, sheathed, third-stage larva; larva has a long, slender esophagus. |
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Definition
| Pregnant; female has developing eggs, embryos, or larvae in reproductive organs. |
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Definition
| The time from intial infection until the onset of clinical symptoms of a disease. |
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Definition
| The stage of the life cycle at which the parasite is capable of entering and continuing development within the host. |
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Definition
| A species of animal that serves as a host for only the larval or sexually immature stages of parasite development. Required part of the life cycle of that parasite. |
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Definition
| An immature stage in the development of a worm before becoming a mature adult. Nematodes molt several times during development, and each subsequent larval stage is increasingly mature. |
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Definition
| Entrance into a host, growth, development, reproduction, and subsequent transmission of offspring to a new host. |
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Definition
| The embryo stage of a filaria parasite; usually in the blood or tissue of humans; can be ingested by the arthropod intermediate host in which the microfilaria will develop to the infective stage. |
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Definition
| A process of replacement of the old cuticle with and inner, new one and subsequent shedding of the old, outer cuticle to allow for the growth and development of the larva; the actual shedding of the old cuticle is termed ecdysis. |
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| Capable of unisexual reproduction; no fertilization is required. |
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| Indicative of disease; characteristic parthenogenic symptoms suggest the disease. |
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| Habit of eating dirt or other unusual substances, such as chalk or plaster. Most often in children or rarely, in adults. |
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Definition
| Noninfective, feeding first-stage larvae; the larvae have an hourglass-shapped esophagus. |
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Definition
| A disease in humans caused by the mirgration fo the larval stage of the roundworm Toxocara canis or T. cati through the liver, lungs or other organs. Normal host of these ascarids is the dog or cat. |
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Term
| Pinworm disease may be diagnosed by which procedure? |
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Definition
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Term
| Taenia solium tapeworm infection occurs when: |
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Definition
| Undercooked pork is eaten |
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Term
| The most common helminth infection in the United States is: |
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Definition
| Enterobius verminicularis |
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Term
| The definitive host for Plasmodium vivax is a: |
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Definition
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Term
| Clonorchis sinensis is commonly known as the: |
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Definition
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| The most pathogenic ameba in humans is: |
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Definition
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| May be used to culture amebae in the laboratory |
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Definition
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| Xenodiagnosis is used for which parasite? |
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Definition
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| Common name for Necator americanus |
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Definition
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| Strongyloides stercoralis |
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| One of the segments of a tapeworm; each contains male and female reproductive organs when mature. |
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Definition
| The caplike cover on certain helminth eggs. |
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Definition
| The time elapsing between initial infection with the parasite and reproduction by the mature parasite. |
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Term
| Nematodes that can cause a pneumonia-like syndrome in a person exposed to heavy infection. |
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Definition
| Necator americanus, Ascaris lumbricoides, or Stronglyoides stercoralis |
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Term
| Vague abdominal pains and a microcytic hypochromic anemia |
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Definition
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Term
| An immunosuppressed patient is susceptible to autoreinfection |
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Definition
| Stronglyoides sterocoralis |
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Term
| Enterobius vermicularis is best diagnosed by? |
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Definition
| Examination of a cellophane tape preparation for eggs and adults |
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Term
| Human infection with Loa loa is best diagnosed by |
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Definition
| Examination of blood smears |
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Term
| A child who plays in dirt contaminated with human and pet feces is susceptible to |
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Definition
| Stronglyoides stercoralis, Toxocara canis, Ascaris lumbricoides, Necator americanus |
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Term
| Adult parasite that does not live in the intestinal tract |
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Definition
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| The largest adult nematode that is found subcutaneously in infected hosts is: |
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Definition
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Term
| Microfilaria that does not have a sheath |
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Definition
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Definition
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Term
| Fecal concentration method |
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Definition
| Ascaris lumbricoides and Stronglyoides stercoralis |
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Definition
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Definition
| Brugia malayi and Wuchereia bancrofti |
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Definition
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Definition
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Term
| Visceral larval migrans is caused by: |
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Definition
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Term
| Zoonotic disease known as creeping eruption is caused by: |
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Definition
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Term
| Main characteristic of Enterobius vermicularis egg |
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Definition
| flattening on one side (french-bread) |
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Term
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Definition
| Enterobius vermicularis egg |
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Term
| Causes severe anal itching |
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Definition
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Term
| barrel-shaped with hyaline plugs |
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Definition
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