ArticleParasitology research2013
Molecular characterization of Cryptosporidium isolates from high-excreting young dairy calves in dairy cattle herds in Western France.
Article in Parasitology research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 31 citations in OpenAlex.
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- Molecular Detection and Distribution ofTransboundary and emerging diseases · 2023Article
- Differences in virulence and oocyst shedding profiles in lambs experimentally infected with different isolates ofCurrent research in parasitology & vector-borne diseases · 2023Article
- FIRST REPORT OF GENUS Cryptosporidium IN CERVIDS SPECIES: Mazama americana, Mazama nana AND Blastocerus dichotomus.Veterinary research communications · 2022Article
- Cross-Border Investigations on the Prevalence and Transmission Dynamics ofMicroorganisms · 2021Article
- Asymptomatic Cryptosporidium infections in ewes and lambs are a source of environmental contamination with zoonotic genotypes of Cryptosporidium parvum.Parasite (Paris, France) · 2020Article
- Dairy Calves in Uruguay Are Reservoirs of Zoonotic Subtypes ofFrontiers in veterinary science · 2020Article
- Molecular characterization of Cryptosporidium isolates from diarrheal dairy calves in France.Veterinary parasitology, regional studies and reports · 2019Article
- Distribution of Cryptosporidium parvum gp60 subtypes in calf herds of Saxony, Germany.Parasitology research · 2019Article
- Prevalence, risk factors and molecular characterization of Cryptosporidium infection in cattle in Addis Ababa and its environs, Ethiopia.Veterinary parasitology, regional studies and reports · 2018Article
- Genetic uniqueness of Cryptosporidium parvum from dairy calves in Colombia.Parasitology research · 2018Article
- Emergence of novel subtypes of Cryptosporidium parvum in calves in Poland.Parasitology research · 2015Article
- Multiple Cryptosporidium parvum subtypes detected in a unique isolate of a Chilean neonatal calf with diarrhea.Parasitology research · 2015Article
- Cryptosporidium parvum infection and associated risk factors in dairy calves in western France.Preventive veterinary medicine · 2015Article
- Validation of fragment analysis by capillary electrophoresis to resolve mixed infections by Cryptosporidium parvum subpopulations.Parasitology research · 2014Article
- Application of recombinant Cryptosporidium parvum P23 for isolation and prevention.Parasitology research · 2014Article
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Ninety-two Cryptosporidium sp.-positive fecal samples of dairy diarrheic or non-diarrheic calves from 30 cattle herds in Normandy (France) were selected. Here, the aim was to investigate the species of Cryptosporidium excreted as well as the subtypes of Cryptosporidium parvum found in 7-17-day-old dairy calves. Excretion levels were comprised between 2 × 10(4) and 4 × 10(7) oocysts per gram of feces. Here, a nested 18S SSU rRNA PCR associated with sequencing was performed for identification of Cryptosporidium species and revealed the presence of C. parvum in most cases (80/82), except for two animals which were infected with Cryptosporidium bovis. Then, C. parvum samples were submitted to gp60 PCR. For 39 samples from 24 different herds, a multilocus analysis based on four mini-microsatellites loci (MM19, MM5, MSF, and MS9-Mallon) were conducted. These results were combined with sequence analysis of the gp60 to obtain multilocus types (MLTs). Here, C. parvum gp60 genotyping identified three subtypes in the IIa zoonotic allele family: IIaA15G2R1 (88%), IIaA16G3R1 (10%), and IIaA19G2R1 (2%), and we identified 12 MLTs. The MS9-Mallon locus was reported as the most polymorphic (five alleles). The most common MLT was MLT 1 with 15 samples in 10 farms: (MS9-M: 298, MSF: 165, MM5: 264, MM19: 462, and gp60 subtype: IIaA15G2R1). When comparing diarrheic and non-diarrheic fecal samples, no difference was seen for distribution of Cryptosporidium species, C. parvum gp60 subtypes, and MLTs. Here, in a range of oocyst excretion of 10(4)-10(7) opg, both in diarrheic and non-diarrheic calves, infection was mainly due to C. parvum and to the zoonotic subtype: IIaA15G2R1.
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