Attēls:Cercarial LifeCycle.png
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Cercarial_LifeCycle.png (569 × 435 pikseļi, faila izmērs: 39 KB, MIME tips: image/png)
 | Šis fails ir no Vikikrātuves. Tā apraksts no attēla lapas Vikikrātuvē ir parādīts zemāk. Vikikrātuve ir brīvi licencēta failu krātuve. Tu vari tai palīdzēt. |
| Apraksts | Typically, hosts of avian schistosomes are migratory water birds, including shorebirds, ducks, and geese. Adult worms are found in the blood vessels and produce eggs that are swallowed and passed in the feces . On exposure to water, the eggs hatch and liberate a ciliated miracidium that infects a suitable molluscan intermediate host . The parasite develops in the intermediate host, usually a certain species of snail , to produce free-swimming cercariae that are released under appropriate conditions and penetrate the skin of the birds to complete the cycle . Humans are inadvertent and inappropriate hosts; cercariae may penetrate the skin but do not develop further . A number of species of dermatitis-producing cercariae have been described from both freshwater and saltwater environments, and exposure to either type of cercariae will sensitize persons to both. |
| Datums | |
| Avots | http://www.dpd.cdc.gov/dpdx/HTML/CercarialDermatitis.htm |
| Autors |
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This image is a work of the Centers for Disease Control and Prevention, part of the United States Department of Health and Human Services, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the image is in the public domain.
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Original upload log
| Datums/Laiks | Izmēri | Dalībnieks | Komentārs |
|---|---|---|---|
| 2007. gada 14. novembris, 14:29:10 | 569 × 435 (28886 bytes) | Filip em (diskusija · devums) | {{Information |Description=Typically, hosts of avian schistosomes are migratory water birds, including shorebirds, ducks, and geese. Adult worms are found in the blood vessels and produce eggs that are swallowed and passed in the feces . On exposure to |
Faila hronoloģija
Uzklikšķini uz datums/laiks kolonnā esošās saites, lai apskatītos, kā šis fails izskatījās tad.
| Datums/Laiks | Attēls | Izmēri | Dalībnieks | Komentārs | |
|---|---|---|---|---|---|
| tagadējais | 2014. gada 21. novembris, plkst. 05.06 | | 569 × 435 (39 KB) | GifTagger | Bot: Converting file to superior PNG file. (Source: Cercarial_LifeCycle.gif). This GIF was problematic due to non-greyscale color table. |
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