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Dynamics of Campylobacter colonization of a natural host, Sturnus vulgaris (European starling)
- Source :
- Environmental Microbiology
- Publication Year :
- 2016
-
Abstract
- Wild European Starlings (Sturnus vulgaris) shed Campylobacter at high rates, suggesting that they may be a source of human and farm animal infection. A survey of Campylobacter shedding of 957 wild starlings was undertaken by culture of faecal specimens and genetic analysis of the campylobacters isolated: shedding rates were 30.6% for Campylobacter jejuni, 0.6% for C. coli and 6.3% for C. lari. Genotyping by multilocus sequence typing (MLST) and antigen sequence typing established that these bacteria were distinct from poultry or human disease isolates with the ST-177 and ST-682 clonal complexes possibly representing starling-adapted genotypes. There was seasonal variation in both shedding rate and genotypic diversity, both exhibiting a maximum during the late spring/early summer. Host age also affected Campylobacter shedding, which was higher in younger birds, and turnover was rapid with no evidence of cross-immunity among Campylobacter species or genotypes. In nestlings, C. jejuni shedding was evident from 9 days of age but siblings were not readily co-infected. The dynamics of Campylobacter infection of starlings differed from that observed in commercial poultry and consequently there was no evidence that wild starlings represent a major source of Campylobacter infections of food animals or humans.
- Subjects :
- DNA, Bacterial
Genotype
Campylobacteriosis
Zoology
medicine.disease_cause
Microbiology
Campylobacter jejuni
Feces
Prevalence
medicine
Animals
Cluster Analysis
Colonization
Typing
Research Articles
Ecology, Evolution, Behavior and Systematics
biology
Campylobacter
Starling
Genetic Variation
Sequence Analysis, DNA
medicine.disease
biology.organism_classification
DNA Fingerprinting
Bacterial Typing Techniques
Sturnus
Starlings
Multilocus sequence typing
Seasons
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Environmental Microbiology
- Accession number :
- edsair.doi.dedup.....d7d5efa20eeb92668e53bf05e3d0ac9e