Identification of Cryptosporidium felis in a Cow by Morphologic and Molecular Methods

Author:

Bornay-Llinares Fernando J.12,da Silva Alexandre J.1,Moura Iaci N. S.1,Myjak Przemysław3,Pietkiewicz Halina3,Kruminis-Łozowska Wiesława3,Graczyk Thaddeus K.4,Pieniazek Norman J.1

Affiliation:

1. Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Public Health Service, U.S. Department of Health and Human Services, Atlanta, Georgia1;

2. División de Microbiologı́a y Parasitologı́a y Centro de Bioingenierı́a, Universidad Miguel Hernández, Alicante, Spain2;

3. Department of Tropical Parasitology, Institute of Maritime and Tropical Medicine, Gdynia, Poland3; and

4. Department of Environmental Health Sciences, School of Hygiene and Public Health, Johns Hopkins University, Baltimore, Maryland4

Abstract

ABSTRACT Apicomplexan Cryptosporidium parasites infect a wide range of vertebrate hosts. While some species are limited to a single host group, such as Cryptosporidium baileyi , which infects chickens, other species of this genus, such as C. parvum , infect a wide range of mammalian species from mice to humans. During an investigation of Cryptosporidium infection in cattle on a farm in northern Poland, we identified an infection caused by C. felis , in addition to known infections with C. muris and C. parvum . This new infection was identified based on the size of the oocysts (mean size, 4.3 ± 0.4 μm; range, 3.5 to 5.0 μm), as well as by analysis of the molecular sequence of the variable region of the small-subunit rRNA. This finding demonstrates the complex host specificity and circulation in the environment of Cryptosporidium species.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Reference36 articles.

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2. Arrowood M. J. Diagnosis Cryptosporidium and cryptosporidiosis. Fayer R. 1997 43 64 CRC Press Inc. Boca Raton Fla

3. Biological nature of Cryptosporidium sp. isolated from a cat.;Asahi H.;Parasitol. Res.,1991

4. Ash L. Orihel T. C. Parasites: a guide to laboratory procedures and identification 1st ed. 1987 5 53 American Society of Clinical Pathology Press Chicago Ill

5. Detection and species identification of Cryptosporidium oocysts using a system based on PCR and endonuclease restriction.;Awad-el-Kariem F. M.;Parasitology,1994

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