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Natural infection with two genotypes of Cryptosporidium in red squirrels (Sciurus vulgaris) in Italy

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F08%3A00321787" target="_blank" >RIV/60077344:_____/08:00321787 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Natural infection with two genotypes of Cryptosporidium in red squirrels (Sciurus vulgaris) in Italy

  • Original language description

    We investigated the genotypes of Cryptosporidium infecting red squirrels in two areas of the Western Alps in Italy. Examination of 141 faecal samples from 70 red squirrels revealed oocysts of Cryptosporidium in 17 animals (24.3%). Based on 18S rRNA genesequencing, two genotypes of Cryptosporidium species were found: 15 squirrels were positive for the Cryptosporidium ferret genotype and 2 for the Cryptosporidium chipmunk genotype I. The occurrence and intensity of Cryptosporidium infection did not differ between the study areas or sex. More than 85% of the positive animals were adults; no difference was found between Cryptosporidium infection in the juvenile and adult age groups. Oocysts of the Cryptosporidium ferret genotype measured 5.5 x 5.2 ?m (shape index 1.06) and the Cryptosporidium chipmunk genotype I 5.8 x 5.4 ?m (shape index 1.07). Neonatal and adult mice inoculated with 1 x 103 fresh oocysts of both genotypes did not produce detectable infection.

  • Czech name

    Přirozená infekce veverek obecných (Sciurus vulgaris) v Itálii dvěma genotypy kryptosporidií

  • Czech description

    Bylo vyšetřeno 141 vzorků trusu získaných ze 70 veverek obecných pocházejících ze dvou lokalit západních Alp v Itálii. U 17 zvířat (24,3%) byla prokázána infekce kryptosporidiemi. Na základě sekvence 18S rRNA byly detekovány dva genotypy kryptosporidií:15 veverek bylo pozitivních na Cryptosporidium ferret genotyp a 2 na Cryptosporidium chipmunk genotyp I. Nebyl zjištěn rozdíl mezi výskytem a intenzitou infekce v závislosti na pohlaví zvířat a lokalitou. Více než 85% infikovaných zvířat bylo dospělých;rozdíl mezi věkovými skupinami nebyl zjištěn. Oocysty Cryptosporidium ferret genotypu měřily 5.5 x 5.2 ?m a Cryptosporidium chipmunk genotypu I 5.8 x 5.4 ?m. Neonatální a adultní myši infikované dávkou 1 x 103 čerstvých oocyst obou genotypů nevykazovalydetekovatelnou infekci.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    GJ - Diseases and animal vermin, veterinary medicine

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2008

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Folia Parasitologica

  • ISSN

    0015-5683

  • e-ISSN

  • Volume of the periodical

    55

  • Issue of the periodical within the volume

    2

  • Country of publishing house

    CZ - CZECH REPUBLIC

  • Number of pages

    5

  • Pages from-to

  • UT code for WoS article

    000257624400002

  • EID of the result in the Scopus database