Cryptosporidium proventriculi sp. n. (Apicomplexa: Cryptosporidiidae) in Psittaciformes birds

Holubová, Nikola; Zikmundová, Veronika; Limpouchová, Zlata; Sak, Bohumil; Konečný, Roman; Hlásková, Lenka; Rajský, D.; Kopacz, Żaneta; McEvoy, John; Kváč, Martin

doi:10.1016/j.ejop.2019.03.001

Cited by 64 publications

(54 citation statements)

References 61 publications

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“…Other studies have reported that Cryptosporidium is found in wild birds, including the mute swan, white stork, carrion crow, mandarin duck, common merganser, rook, sparrowhawk, common buzzard, black kite, and honey buzzard [16,22]. C. parvum has been reported in domestic birds throughout the world, including Bengalese finches, psittacines, and cockatiels [31,40,41].…”

Section: Discussionmentioning

confidence: 99%

First Detection of Cryptosporidium spp. in Migratory Whooper Swans (Cygnus cygnus) in China

et al. 2019

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Cryptosporidium is an important protozoan parasite that can cause gastrointestinal diseases in humans and that also causes respiratory and gastrointestinal diseases in birds. In this study, we investigated the occurrence of Cryptosporidium species in migratory whooper swans in China. Fecal samples (n = 467) from whooper swans were collected from Sanmenxia Swan Lake National Urban Wetland Park, China. The samples were analyzed for Cryptosporidium species and genotypes with PCR along a sequence analysis of the small subunit rRNA. Cryptosporidium was detected in eight of the 467 (1.7%) samples. The analysis of the small subunit rRNA sequence data revealed two zoonotic species (Cryptosporidium parvum and Cryptosporidium andersoni) and one genotype (Cryptosporidium goose genotype II). These are the first data on the positive rate of Cryptosporidium spp. in whooper swans in China, and they suggest that whooper swans can harbor the zoonotic species C. parvum and C. andersoni in China.

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Section: Discussionmentioning

confidence: 99%

First Detection of Cryptosporidium spp. in Migratory Whooper Swans (Cygnus cygnus) in China

et al. 2019

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“…Currently, Cryptosporidium has 41 reported species with more than 60 valid genotypes [5]. Amongst them, 21 species and genotypes have been identified in humans, out of which C. parvum and C. hominis are the most common pathogenic species, causing more than 90% of infections in humans.…”

Section: Introductionmentioning

confidence: 99%

Cryptosporidium and Cryptosporidiosis: The Perspective from the Gulf Countries

Ahmed

Karanis

2020

IJERPH

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The present review discusses the burden of cryptosporidiosis in the Gulf Cooperation Council (GCC), which is underreported and underestimated. It emphasizes that the Cryptosporidium parasite is infecting inhabitants and expatriates in the Gulf countries. Children under 5 years are a vulnerable group that is particularly affected by this parasitic disease and can act as carriers, who contribute to the epidemiology of the disease most probably via recreational swimming pools. Various risk factors for cryptosporidiosis in the GCC countries are present, including expatriates, predisposing populations to the infection. Water contamination, imported food, animal contact, and air transmission are also discussed in detail, to address their significant role as a source of infection and, thus, their impact on disease epidemiology in the Gulf countries’ populations.

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“…The use of PCR-based molecular tools for the characterization of Cryptosporidium and E. bieneusi have improved our understanding of their epidemiology, providing information on the host distribution of various species/genotypes and transmission routes/sources [4,5]. To date, 39 species of Cryptosporidium and more than 70 genotypes having been described [5,6]. Amongst them, 21 Cryptosporidium species/genotypes have been identified in humans, of which C. hominis and C. parvum are the most common, causing > 90% of human cryptosporidiosis cases [5].…”

Section: Introductionmentioning

confidence: 99%

Prevalence and genotypic identification of Cryptosporidium spp. and Enterocytozoon bieneusi in captive Asiatic black bears (Ursus thibetanus) in Heilongjiang and Fujian provinces of China

et al. 2020

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Background: Cryptosporidium and Enterocytozoon bieneusi are two important pathogens with zoonotic potential that cause enteric infections in a wide range of hosts, including humans. Both are transmitted from animals to humans by direct contact or through contaminated equipment. Bears are frequently found in Chinese zoos as ornamental animals as well as farmed as commercial animals, and are therefore in close contact with zoo-or farmkeepers, but the prevalence and zoonotic potential of Cryptosporidium and E. bieneusi in bears is poorly understood. In this study, we aimed to provide data on the occurrence and genetic diversity of Cryptosporidium and E. bieneusi in Asiatic black bears from Heilongjiang and Fujian, China. From May 2015 to December 2017, 218 fresh fecal specimens were collected from captive Asiatic black bears in Heilongjiang (n = 36) and Fujian (n = 182), China. Cryptosporidium and E. bieneusi were examined by PCR amplification of the partial small subunit of ribosomal DNA (SSU rDNA) and the internal transcribed spacer (ITS) region of rDNA, respectively. C. andersoni-positive isolates were subtyped through PCR analysis of the four minisatellite/microsatellite (MS1, MS2, MS3 and MS16) loci. Results: The overall prevalence of Cryptosporidium and E. bieneusi were 2.4% (4/218) and 6.4% (14/218), respectively, with 2.8% (1/36) and 22.2% (8/36) in the Heilongjiang Province, and 1.6% (3/182) and 3.3% (6/182) in the Fujian Province. Sequence analysis confirmed the presence of Cryptosporidium species: C. andersoni (n = 3) and a genotype termed Cryptosporidium rat genotype IV (n = 1). All three identified C. andersoni belonged to the MLST subtype A4, A4, A4, A1. Two known E. bieneusi genotypes D (n = 4) and SC02 (n = 10) were identified, both of which belong to zoonotic Group 1. Conclusions: This is the first report of C. andersoni and Cryptosporidium rat genotype IV in bears. The discovery of the zoonotic potential of E. bieneusi genotype D in bears highlights its significant zoonotic potential and potential threat to human health.

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Cryptosporidium proventriculi sp. n. (Apicomplexa: Cryptosporidiidae) in Psittaciformes birds

Cited by 64 publications

References 61 publications

First Detection of Cryptosporidium spp. in Migratory Whooper Swans (Cygnus cygnus) in China

First Detection of Cryptosporidium spp. in Migratory Whooper Swans (Cygnus cygnus) in China

Cryptosporidium and Cryptosporidiosis: The Perspective from the Gulf Countries

Prevalence and genotypic identification of Cryptosporidium spp. and Enterocytozoon bieneusi in captive Asiatic black bears (Ursus thibetanus) in Heilongjiang and Fujian provinces of China

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