Revision for “Ascocotyle longicollis” created on June 18, 2014 @ 12:58:16

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Ascocotyle longicollis
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<p align="CENTER"><span style="color: #000000;"><span style="font-size: large;"><i><b>Ascocotyle longicollis</b></i></span></span><span style="color: #000000;"><span style="font-size: large;"><b> (Kuntz &amp; Chandler, 1956) Soganderes-Bernal &amp; Lumsden, 1963</b></span></span></p> <p align="JUSTIFY"><span style="color: #000000;"><span style="font-size: medium;"><b>ETYMOLOGY:</b></span></span><span style="color: #000000;"><span style="font-size: medium;"> The </span></span><span style="color: #000000;"><span style="font-size: medium;"><i>longicollis</i></span></span><span style="color: #000000;"><span style="font-size: medium;"> refers to the length of the elongation of the oral sucker.</span></span></p> <p align="JUSTIFY"><span style="color: #000000;"><span style="font-size: medium;"><b>SYNONYMS:</b></span></span><span style="color: #000000;"><span style="font-size: medium;"><i>Phagicola longicollis</i></span></span><span style="color: #000000;"><span style="font-size: medium;"> Kuntz and Chandler, 1956</span></span></p> <p align="JUSTIFY"><span style="color: #000000;"><span style="font-size: medium;"><b>HISTORY:</b></span></span><span style="color: #000000;"><span style="font-size: medium;"> This parasite was originally described from specimens collected from 22 of 48 cats in Egypt.</span></span></p> <p align="JUSTIFY"><span style="color: #000000;"><span style="font-size: medium;"><b>GEOGRAPHIC DISTRIBUTION:</b></span></span><span style="color: #000000;"><span style="font-size: medium;"> Egypt.</span></span></p> <p align="JUSTIFY"><span style="color: #000000;"><span style="font-size: medium;"><b>LOCATION IN HOST:</b></span></span><span style="color: #000000;"><span style="font-size: medium;"> Small intestine.</span></span></p> <p align="JUSTIFY"><span style="color: #000000;"><span style="font-size: medium;"><b>PARASITE IDENTIFICATION:</b></span></span><span style="color: #000000;"><span style="font-size: medium;"> This fluke is 0.6 to 1.0 mm in length. The oral sucker bears approximately 20 hooklets and leads into the conical prepharynx that is characteristic of this genus. The genital opening is just anterior to the ventral sucker which is at the beginning of the posterior third of the body. Most of the reproductive organs are posterior to the ventral sucker. The paired testes are symmetrical and located at the posterior end of the body.</span></span></p> <p align="JUSTIFY"><span style="color: #000000;"><span style="font-size: medium;"> The eggs are 18 to 20 µm long by 10 µm in width.</span></span></p> <p align="JUSTIFY"><span style="color: #000000;"><span style="font-size: medium;"><b>LIFE CYCLE:</b></span></span><span style="color: #000000;"><span style="font-size: medium;"> Cats were found to be naturally infected with this parasite. Adult worms were recovered from dogs fed brackish-water fish (</span></span><span style="color: #000000;"><span style="font-size: medium;"><i>Mugil</i></span></span><span style="color: #000000;"><span style="font-size: medium;"> and </span></span><span style="color: #000000;"><span style="font-size: medium;"><i>Telapia</i></span></span><span style="color: #000000;"><span style="font-size: medium;"> spp) containing metacercariae (Fahmy and Selim, 1959).</span></span></p> <p align="JUSTIFY"><span style="color: #000000;"><span style="font-size: medium;"><b>CLINICAL PRESENTATION AND PATHOGENESIS:</b></span></span><span style="color: #000000;"><span style="font-size: medium;"> Thought to be asymptomatic.</span></span></p> <p align="JUSTIFY"><span style="color: #000000;"><span style="font-size: medium;"><b>TREATMENT:</b></span></span><span style="color: #000000;"><span style="font-size: medium;"> Probably praziquantel, but not reported.</span></span></p> <p align="JUSTIFY"><span style="color: #000000;"><span style="font-size: medium;"><b>EPIZOOTIOLOGY:</b></span></span><span style="color: #000000;"><span style="font-size: medium;"> Cats probably become infected by eating raw fish with the parasite. Dogs also seem to serve as final hosts.</span></span></p> <p align="JUSTIFY"><span style="color: #000000;"><span style="font-size: medium;"><b>HAZARD TO OTHER ANIMALS:</b></span></span><span style="color: #000000;"><span style="font-size: medium;"> None. Although dogs are also infected, the major means of infection is through the ingestion of the fish intermediate host which requires that the appropriate snail also be available. Thus, infection of these other hosts will typically only occur in the wild.</span></span></p> <p align="JUSTIFY"><span style="color: #000000;"><span style="font-size: medium;"><b>HAZARD TO HUMANS:</b></span></span><span style="color: #000000;"><span style="font-size: medium;"> None. Humans theoretically could become infected if they ingested an infected piscine host.</span></span></p> <p align="JUSTIFY"><span style="color: #000000;"><span style="font-size: medium;"><b>CONTROL/PREVENTION:</b></span></span><span style="color: #000000;"><span style="font-size: medium;"> Prevention of the ingestion of raw fish.</span></span></p> <p align="JUSTIFY"><span style="color: #000000;"><span style="font-size: medium;"><b>REFERENCES:</b></span></span></p> <p align="JUSTIFY"><span style="color: #000000;"><span style="font-size: medium;">Fahmy MAM, Selim MK. 1959. Studies on some trematode parasites of dogs in Egypt with special reference to the role played by fish in their transmission. Z Parasitenk 19:3-13.</span></span></p>
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June 18, 2014 @ 12:58:16 Anastasia Bowman
June 13, 2014 @ 15:08:47 Anastasia Bowman