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Ascariasis is a disease caused by the parasitic roundworm Ascaris lumbricoides. [1] Infections have no symptoms in more than 85% of cases, especially if the number of worms is small. [ 1 ] Symptoms increase with the number of worms present and may include shortness of breath and fever at the beginning of the disease. [ 1 ]
Ascaris lumbricoides is a large parasitic roundworm of the genus Ascaris. It is the most common parasitic worm in humans. [ 1 ] An estimated 807 million–1.2 billion people are infected with Ascaris lumbricoides worldwide. [ 2 ]
Ascaris lumbricoides. Hookworm Trichuris trichiura. Toxocara spp. Timeline of lifecycle stages Larval formation Some days (eggs can survive for months) [26] 9–15 days [23] 18 days to several weeks [27] 1–2 days [28] 15–30 days [29] Larval growth After hatching, the larvae develop into cysticercoid, which can survive for years in an animal ...
Ascaris lumbricoides Linn., 1758 Ascaris suum ( Goeze , 1782) Ascaris is a nematode genus of parasitic worms known as the "small intestinal roundworms". [ 1 ]
Ascaris suum, also known as the large roundworm of pig, is a parasitic nematode that causes ascariasis in pigs.While roundworms in pigs and humans are today considered as two species (A. suum and A. lumbricoides) with different hosts, cross-infection between humans and pigs is possible; some researchers have thus argued they are the same species. [1]
The incubation period for Toxocara canis and cati eggs depends on temperature and humidity. [7] [16] T. canis females, specifically, are capable of producing up to 200,000 eggs a day that require 2–6 weeks minimum up to a couple months before full development into the infectious stage. [19]
The terms "intrinsic incubation period" and "extrinsic incubation period" are used in vector-borne diseases. The intrinsic incubation period is the time taken by an organism to complete its development in the definitive host. The extrinsic incubation period is the time taken by an organism to develop in the intermediate host. [citation needed]
The exact incubation period of T. trichiura is unknown, however, immature eggs in soil under favorable conditions take about three weeks to mature: 15–30 days, 10 days minimum to mature before ideal ingestion by the human host. Favorable conditions for maturation of eggs are warm to temperate climates with adequate humidity or precipitation ...