Ascaridida
Experimental heteroxenous cycle of Lagochilascaris minor Leiper, 1909 (Nematoda: Ascarididae) in white mice and in cats. (1/7)
Reports of natural infections of sylvatic carnivores by adult worms of species similar to Lagochilascaris minor in the Neotropical region led to attempts to establish experimental cycles in laboratory mice and in cats. Also, larval development was seen in the skeletal muscle of an agouti (Dasyprocta leporina) infected per os with incubated eggs of the parasite obtained from a human case. In cats, adult worms develop and fertile eggs are expelled in the feces; in mice, larval stages of the parasite develop, and are encapsulate in the skeletal muscle, and in the adipose and subcutaneous connective tissue. From our observations, we conclude that the larva infective for the mouse is the early 3rd stage, while for the final host the infective form is the later 3rd stage. A single moult was seen in the mouse, giving rise to a small population of 4th stage larvae, long after the initial infection. (+info)Identification of parasite DNA in common bile duct stones by PCR and DNA sequencing. (2/7)
We attempted to identify parasite DNA in the biliary stones of humans via PCR and DNA sequencing. Genomic DNA was isolated from each of 15 common bile duct (CBD) stones and 5 gallbladder (GB) stones. The patients who had the CBD stones suffered from cholangitis, and the patients with GB stones showed acute cholecystitis, respectively. The 28S and 18S rDNA genes were amplified successfully from 3 and/or 1 common bile duct stone samples, and then cloned and sequenced. The 28S and 18S rDNA sequences were highly conserved among isolates. Identity of the obtained 28S D1 rDNA with that of Clonorchis sinensis was higher than 97.6%, and identity of the 18S rDNA with that of other Ascarididae was 97.9%. Almost no intra-specific variations were detected in the 28S and 18S rDNA with the exception of a few nucleotide variations, i.e., substitution and deletion. These findings suggest that C. sinensis and Ascaris lumbricoides may be related with the biliary stone formation and development. (+info)Helminth fauna of Lycisalamandra billae (Franzen & Klewen) (Luschan salamander) collected from Antalya. (3/7)
Fifty (26 males, 21 female and 3 juvenile) Lyciasalamandra luschani (Luschan's salamander) collected in Antalya, were examined for helminths during 1997-2001. In this study, 3 helminth species, Aplectana acuminata, Cosmocerca longicauda and Angiostoma aspersae (Nematoda) were found. This study is the first helminthological research of Luschan's salamander in the world. This is the first time that Luschan's salamander has been shown to be the host of these parasites. (+info)Correlation between male social status, testosterone levels, and parasitism in a dimorphic polygynous mammal. (4/7)
(+info)Concurrent Capillaria and Heterakis infections in zoo rock partridges, Alectoris graeca. (5/7)
(+info)Lagochilascaris minor Leiper, 1909 (Nematoda: Ascarididae) in Mexico: three clinical cases from the Peninsula of Yucatan. (6/7)
(+info)Sealworm Pseudoterranova decipiens s.s. infection of European smelt Osmerus eperlanus in German coastal waters: ecological implications. (7/7)
(+info)The symptoms of ascariasis, as the infection is known, can vary depending on the severity of the infection and the location of the infestation. Common symptoms include:
* Abdominal pain and discomfort
* Diarrhea
* Vomiting
* Weight loss
* Coughing and wheezing
* Shortness of breath
In severe cases, ascariasis can lead to complications such as:
* Bowel obstruction
* Intestinal perforation
* Anemia
* Malnutrition
The diagnosis of ascariasis is typically made through a physical examination and medical history. Imaging tests such as X-rays, CT scans, or MRI scans may also be used to confirm the presence of the parasites.
Treatment for ascariasis usually involves the use of anti-parasitic drugs such as albendazole or mebendazole. These medications are effective in killing the parasites and can help relieve symptoms. In severe cases, hospitalization may be necessary to monitor and treat any complications.
Prevention measures for ascariasis include:
* Improving sanitation and hygiene practices
* Avoiding consumption of contaminated food and water
* Cooking food thoroughly before eating
* Washing hands regularly, especially after using the bathroom or before handling food
It is important to note that ascariasis can be a recurring infection, and individuals who have had the infection in the past may still be at risk for re-infection. Therefore, ongoing prevention measures are necessary to reduce the risk of reinfection.
Ascaridida
Chromadorea
Cosmoceroidea
Cosmocercoides
Dioctophymatidae
Heterakidae
Maupasinidae
Oesophagostomum
Raphidascarididae
Rhabditia
Baylisascaris schroederi
Ascaridina
Ascarididae
Parascaris equorum
Poicephalus
Terranova (nematode)
Spiruria
Parascaris univalens
Baylisascaris procyonis
Ascaris
Megalobatrachonema
Hysterothylacium
Moaciria moraveci
Parascaris
Subuluridae
Neoterranova
Cucullanus bulbosus
Cucullanus variolae
Cucullanus parapercidis
Cucullanus austropacificus
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Etymologia: Pseudoterranova azarasi - Volume 17, Number 3-March 2011 - Emerging Infectious Diseases journal - CDC
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- First identified in 1878 as a parasite in pinnipeds by Danish scientist Harald Krabbe, who suggested the name Ascaris decipiens , the taxonomic designation for these nematodes changed as knowledge of the life cycles and morphologic features of members of the order Ascaridida expanded. (cdc.gov)
- The rounded or oval shape and thick shell of one of the five morphotypes suggests that it belongs to nematode of the order Ascaridida. (bvsalud.org)