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Definition
| Reinfecting oneself. In the pinworm lifecycle infected individuals may reinfect themselves with hand to mouth transfer from scratching the perianal region after the female worm has deposited eggs. In other cycles, infective eggs may hatch inside the host and then develop into an adult (Strongyloides stercoralis) |
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| oral cavity of roundworms |
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| fan shaped cartilage expansion at the posterior end of some male nematodes. that holds onto the female during copulation |
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Definition
| 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
| possessing an outer, mammilated albuminous coating, as on the eggs of Ascaris lubricoides |
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| a disease cause by the migration of larvae of Ancylostoma spp. or other helminth larvae traveling under the skin of humans. Larval migration is marked by thin, red papular lines of eruption. Also termed creeping eruption. |
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Definition
| the surface of roundworms; a tough protective covering that is resistant to digestion |
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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. |
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Definition
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Definition
| unusual excess fluid in the tissue, causing swelling |
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Definition
| overgrowth of the skin and subcutaneous tissue in linbs or genitalia resulting from obstructed circulation in the lymphatic vessels, can occur in the presence of some long term chronic filaria ( Wuchereria bencrofti) |
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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
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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
| pregnant; female has developing eggs, embryos or larvae in the reproductive system |
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Definition
| depressed immune response system; can accompany various diseases or can be induced by drugs. |
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Term
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Definition
| the time from initial infection until the onset of clinical symptoms of 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 host for only the larval or sexually immature stages of parasite development. Required par of the lifecycle of 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 increasing 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 filaria parasite; usually in the blood or tissue of humans; can be ingested by the arthropod intermediate host in which microfilaria will develop to the infective stage. |
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Term
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Definition
| a process of replacement of the old cuticle with an 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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Term
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Definition
a process of replacement of the old cuticle with an 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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Definition
| A class of the animal phylum Nemathelminthes - the roundworms |
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Definition
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Definition
| capable of unisexual preproduction; no fertilization is required (Strongyloides stercoralis) |
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Definition
| indicative of disease; characteristic symptoms suggest the disease |
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Definition
| recurring at a regular time period |
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Definition
| habit of eating dirt or other unusual substances such as chalk or plaster seen with children and adults with anemia |
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Definition
| the time elapsing between initial infection with the immature parasite and reproduction by the adult parasite. |
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Definition
| intense itching; (pruritus ani = anal inching as in enerobiasis) |
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Definition
| weakening of the rectal musculature resulting in a "falling down" of the rectum occasionally seen in heavy whipworm infections particularly in kids |
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Definition
| noninfective feeding first stage larva (larva has hour glass shaped esophagus) |
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Definition
| a disease syndrome associated with high levels of blood eosinophils and an asthma like syndrome. cause by zoonotic filaria infections in which no microfilaria are detectable in peripheral blood in most cases. |
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| a disease in human cause by the migration of the larval stage f roundworm toxocara canis through the liver, lungs or other organs. The normal host of the ascarids is the dog or cat. The disease is characterized by hyperosinophilia and hepatomegaly and often by pneumonia. Migrating larvae can invade ocular spaces and cause retinal damage. |
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