Cryptosporidium parvum subtypes from diarrheic dairy calves in Israel.

Autor: Yasur-Landau D; Division of Parasitology, Kimron Veterinary Institute, P.O. Box 12, 5025001 Bet Dagan, Israel. Electronic address: DanielY@moag.gov.il., Zilberberg M; Koret School of Veterinary Medicine, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 7610001, Israel. Electronic address: matan.zilberberg@mail.huji.ac.il., Perry Markovich M; Poultry Health Division, Israeli Veterinary Services, P.O. Box 12, 5025001 Bet Dagan, Israel. Electronic address: MichalP@moag.gov.il., Behar A; Division of Parasitology, Kimron Veterinary Institute, P.O. Box 12, 5025001 Bet Dagan, Israel. Electronic address: AdiB@moag.gov.il., Fleiderovitz L; Division of Parasitology, Kimron Veterinary Institute, P.O. Box 12, 5025001 Bet Dagan, Israel. Electronic address: LudaF@moag.gov.il., Leszkowicz Mazuz M; Division of Parasitology, Kimron Veterinary Institute, P.O. Box 12, 5025001 Bet Dagan, Israel. Electronic address: MonicaL@moag.gov.il.
Jazyk: angličtina
Zdroj: Veterinary parasitology, regional studies and reports [Vet Parasitol Reg Stud Reports] 2021 Jul; Vol. 25, pp. 100608. Date of Electronic Publication: 2021 Jul 14.
DOI: 10.1016/j.vprsr.2021.100608
Abstrakt: Cryptosporidium are protozoan parasites with worldwide distribution, infecting a wide range of terrestrial and aquatic animals, as well as humans. Cryptosporidium parvum is the most important zoonotic species and is the primary cause of cryptosporidiosis in preweaned calves, a highly prevalent, economically important disease. Extensive subtyping of C. parvum from infected humans and animals has expanded current understanding of the parasites' epidemiology. Israel has a highly developed dairy sector with intensive, zero-grazing operations. While C. parvum has been found in dairy calves throughout the country, and subtype data from human patients have also been published, subtype data from animals, and in particular preweaned ruminants, are lacking. We carried out an initial study of Cryptosporidium species and subtypes from preweaned diarrheic calves. Cryptosporidium species were determined in 71 fecal samples from 43 different dairy farms using 18S rRNA PCR, and subtyping of C. parvum based on the 60-kDa glycoprotein (gp60) sequences was done on one sample per farm. C. parvum was the only species found, with eight different subtypes belonging to the zoonotic IIa and IId families. Subtype IIaA15G2R1 was the most prevalent and widespread, found in 50% of the farms over a wide geographical distribution. Our results confirm the presence of subtypes IIaA15G2R1 and IIdA20G1, which were previously found in human patients in Israel, also in Israeli calves. In addition, subtype IIaA12G1R1 is reported here for the first time in an animal. These findings demonstrate the value of monitoring C. parvum subtypes in animal samples, and suggest that the role of calves as well as other young ruminants in the transmission of zoonotic cryptosporidiosis in Israel should be further studied.
(Copyright © 2021 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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