Human cercarial dermatitis is a parasitic disease that causes an allergic reaction in the skin (swimmer's itch) as a consequence of contact with cercariae of bird schistosomes present in water, mainly of the genus Trichobilharzia Skrjabin et Zakarow, 1920. The main objective of the study was to confirm the presence of the zoonotic disease agent following reports of human infections in recreational water in Slovakia. We identified two species of freshwater snails at Košice Lake, Radix auricularia (Linnaeus, 1758) and Physa acuta (Draparnaud, 1805). Trematode infections were observed only in R. auricularia. Of the 62 snails collected, 11 (17.7%) were infected with 5 different species of larval stages of trematodes. The blood fluke Trichobilharzia franki was found in 2 (3.2%) of the examined snails. The present record provides the first evidence that T. franki from the pulmonate snail R. auricularia represents a source of human cercarial dermatitis in recreational water in Slovakia. Our finding complements the easternmost records of both swimmer's itch and the confirmed occurrence of a bird schistosome in a waterbody in Europe. The present work suggests that the health risks associated with trichobilharziasis need to be further studied by detailed monitoring of the occurrence of the major causative agent of human cercarial dermatitis, T. franki.
- Klíčová slova
- Bird schistosomes, Cercariae, Cercarial dermatitis, Trematodes, Trichobilharzia, Zoonosis,
- MeSH
- dermatitida epidemiologie parazitologie MeSH
- epidemický výskyt choroby MeSH
- hlemýždi parazitologie MeSH
- infekce červy třídy Trematoda epidemiologie parazitologie přenos MeSH
- jezera parazitologie MeSH
- lidé MeSH
- parazitární onemocnění kůže parazitologie přenos MeSH
- Schistosomatidae klasifikace genetika izolace a purifikace MeSH
- schistosomóza epidemiologie parazitologie přenos MeSH
- zoonózy epidemiologie parazitologie přenos MeSH
- zvířata MeSH
- Check Tag
- lidé MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Slovenská republika epidemiologie MeSH
Bird schistosomes have been in focus as causative agents of cercarial dermatitis of humans in the last years; however, our knowledge of their species spectrum and intermediate host specificity is still insufficient. Our study focused on bird schistosomes developing in planorbid snails that have been less studied so far. From 2001 to 2010, cercariae of bird schistosomes were found in four snail species (Gyraulus albus, Segmentina nitida, Anisus vortex and Planorbis planorbis) from seven localities in the Czech Republic. Based on morphology and results of molecular analysis, the isolates found belong to at least six species. Five of them are probably undescribed species, and one species appears to be identical with Gigantobilharzia vittensis Reimer, 1963 (syn. G. suebica Dönges, 1964). The finding from S. nitida represents the first report of a bird schistosome from this snail.
- MeSH
- cerkárie MeSH
- dermatitida parazitologie MeSH
- DNA helmintů chemie genetika MeSH
- fylogeneze MeSH
- hlemýždi parazitologie MeSH
- hostitelská specificita MeSH
- infestace ektoparazity parazitologie přenos veterinární MeSH
- kachny MeSH
- kur domácí MeSH
- lidé MeSH
- molekulární sekvence - údaje MeSH
- myši inbrední BALB C MeSH
- myši MeSH
- nemoci ptáků parazitologie přenos MeSH
- pěnkavovití MeSH
- ribozomální DNA chemie genetika MeSH
- Schistosoma anatomie a histologie klasifikace genetika izolace a purifikace MeSH
- schistosomóza parazitologie přenos veterinární MeSH
- sekvence nukleotidů MeSH
- sekvenční analýza DNA MeSH
- zvířata MeSH
- Check Tag
- lidé MeSH
- mužské pohlaví MeSH
- myši MeSH
- ženské pohlaví MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Geografické názvy
- Česká republika MeSH
- Názvy látek
- DNA helmintů MeSH
- ribozomální DNA MeSH
The molluscicidal properties of 5-nitro- and 3-nitro2',4'-dichloro salicylanilides and their mixture 5.5 : 1 were investigated against the intermediate hosts of schistosomes Bulinus truncatus and Biomphalaria alexandrina. Unlike Bayluscide, the activity of the new mulluscicides is not affected by strong sun radiation or by acidic pH. Their activity is resistant to storage, river-bed mud and lower temperature.
- MeSH
- Biomphalaria účinky léků MeSH
- Bulinus účinky léků MeSH
- chemické jevy MeSH
- chemie MeSH
- moluskacidy * MeSH
- salicylamidy farmakologie MeSH
- salicylanilidy farmakologie MeSH
- schistosomóza prevence a kontrola přenos MeSH
- zvířata MeSH
- Check Tag
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Egypt MeSH
- Názvy látek
- moluskacidy * MeSH
- salicylamidy MeSH
- salicylanilidy MeSH
