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  • Asymptomatic infections with highly polymorphic Chlamydia suis are ubiquitous in pigs.

    Author(s) : Li MinJelocnik, M.Yang FengGong JianSengKaltenboeck, B.Polkinghorne, A.Feng ZhiXinPannekoek, Y.Borel, N.Song ChunLianJiang PingLi JingZhang JiLeiWang YaoYaoWang JiaWeiZhou XinWang ChengMing

    Author Affiliation : Yangzhou University College of Veterinary Medicine, Yangzhou, Jiangsu, China.

    Author Email : wangche@auburn.edu

    Journal article : BMC Veterinary Research 2017 Vol.13 No.370 pp.(1 December 2017) ref.56

    Abstract : Background: Chlamydia suischlamydia suisSubject Category: Organism Names
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    is an important, globally distributed, highly prevalent and diverse obligate intracellular pathogen infecting pigspigsSubject Category: Organism Names
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    . To investigate the prevalence and genetic diversitygenetic diversitySubject Category: Properties
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    of C. suis in ChinachinaSubject Category: Geographic Entities
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    , 2,137 nasal, conjunctival, and rectal swabs as well as whole bloodbloodSubject Category: Anatomical and Morphological Structures
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    and lung samples of pigs were collected in 19 regions from ten provinces of China in this study. Results: We report an overall positivity of 62.4% (1,334/2,137) of C. suis following screeningscreeningSubject Category: Techniques, Methodologies and Equipment
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    by Chlamydia spp. 23S rRNA-based FRET-PCR and high-resolution melting curve analysis and confirmatory sequencing. For C. suis-positive samples, 33.3% of whole blood and 62.5% of rectal swabs were found to be positive for the C. suis tetR(C) gene, while 13.3% of whole blood and 87.0% of rectal swabs were positive for the C. suis tet(C) gene. Phylogenetic comparison of partial C. suis ompA gene sequences revealed significant genetic diversity in the C. suis strains. This genetic diversity was confirmed by C. suis-specific multilocus sequence typing (MLST), which identified 26 novel sequence types among 27 examined strains. Tanglegrams based on MLST and ompA sequences provided evidence of C. suis recombinationrecombinationSubject Category: Miscellaneous
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    amongst the strains analyzed. Conclusions: Genetically highly diverse C. suis strains are exceedingly prevalent in pigs. As it stands, the potential pathogenic effect of C. suis on pig healthhealthSubject Category: Miscellaneous
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    and production of C. suis remains unclear and will be the subject of further investigations. Further study is also required to address the transmissiontransmissionSubject Category: Miscellaneous
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    of C. suis between pigs and the risk of 'spillover' and 'spill-back' of infections to wild animalswild animalsSubject Category: Organism Groups
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    and humans.

    ISSN : 1746-6148

    URL : https://bmcvetres.biomedcentral.com/t...

    Record Number : 20183140947

    Publisher : BioMed Central Ltd

    Location of publication : London

    Country of publication : UK

    Language of text : English

    Indexing terms for this abstract:

    Organism descriptor(s) : ChlamydiachlamydiaSubject Category: Organism Names
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    , Chlamydia suischlamydia suisSubject Category: Organism Names
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    , manmanSubject Category: Organism Names
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    , pigspigsSubject Category: Organism Names
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    Descriptor(s) : asymptomatic infectionsasymptomatic infectionsSubject Category: Diseases, Disorders, and Symptoms
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    , bloodbloodSubject Category: Anatomical and Morphological Structures
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    , genesgenesSubject Category: Miscellaneous
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    , genetic diversitygenetic diversitySubject Category: Properties
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    , healthhealthSubject Category: Miscellaneous
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    , incidenceincidenceSubject Category: Properties
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    , infectionsinfectionsSubject Category: Diseases, Disorders, and Symptoms
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    , lungslungsSubject Category: Anatomical and Morphological Structures
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    , nosenoseSubject Category: Anatomical and Morphological Structures
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    , phylogenyphylogenySubject Category: Miscellaneous
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    , polymorphismpolymorphismSubject Category: Properties
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    , recombinationrecombinationSubject Category: Miscellaneous
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    , rectumrectumSubject Category: Anatomical and Morphological Structures
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    , screeningscreeningSubject Category: Techniques, Methodologies and Equipment
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    , taxonomytaxonomySubject Category: Disciplines, Occupations and Industries
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    , transmissiontransmissionSubject Category: Miscellaneous
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    , wild animalswild animalsSubject Category: Organism Groups
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    Identifier(s) : gene sequences, genetic recombination, hogs, People's Republic of China, screening tests, swine, systematics

    Geographical Location(s) : ChinachinaSubject Category: Geographic Entities
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    Broader term(s) : HomohomoSubject Category: Organism Names
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    , HominidaehominidaeSubject Category: Organism Names
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    , primatesprimatesSubject Category: Organism Names
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    , mammalsmammalsSubject Category: Organism Names
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    , vertebratesvertebratesSubject Category: Organism Names
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    , ChordatachordataSubject Category: Organism Names
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    , animalsanimalsSubject Category: Organism Names
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    , eukaryoteseukaryotesSubject Category: Organism Names
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    , Sus scrofasus scrofaSubject Category: Organism Names
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    , SussusSubject Category: Organism Names
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    , SuidaesuidaeSubject Category: Organism Names
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    , SuiformessuiformesSubject Category: Organism Names
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    , ArtiodactylaartiodactylaSubject Category: Organism Names
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    , APEC countriesapec countriesSubject Category: Institutions and Organisations
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    , Developing Countriesdeveloping countriesSubject Category: Miscellaneous
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    , East Asiaeast asiaSubject Category: Geographic Entities
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    , AsiaasiaSubject Category: Geographic Entities
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    , ChlamydiaceaechlamydiaceaeSubject Category: Organism Names
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    , ChlamydialeschlamydialesSubject Category: Organism Names
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    , ChlamydiaechlamydiaeSubject Category: Organism Names
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    , BacteriabacteriaSubject Category: Organism Names
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    , prokaryotesprokaryotesSubject Category: Organism Names
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    , ChlamydiachlamydiaSubject Category: Organism Names
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