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Carriage of the zoonotic organism Streptococcus suis in chicken flocks in Vietnam
Author(s) -
Nhung Nguyen Thi,
Yen Nguyen Thi Phuong,
Cuong Nguyen,
Kiet Bach Tuan,
Hien Vo Be,
Campbell James,
Thwaites Guy,
Baker Stephen,
Geskus Ronald,
Ashton Philip,
CarriqueMas Juan
Publication year - 2020
Publication title -
zoonoses and public health
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.87
H-Index - 65
eISSN - 1863-2378
pISSN - 1863-1959
DOI - 10.1111/zph.12711
Subject(s) - biology , flock , streptococcus suis , microbiology and biotechnology , tetracycline , erythromycin , penicillin , colonization , clindamycin , veterinary medicine , virology , antibiotics , virulence , medicine , paleontology , biochemistry , gene
Streptococcus suis infections are an emerging zoonotic agent causing severe disease in humans and a major pig pathogen worldwide. We investigated the colonization of S. suis in healthy chickens in different flocks ( n = 59) as well as in‐contact pigs in farms with S. suis ‐positive chickens ( n = 44) in the Mekong Delta of Vietnam. Streptococcus suis was isolated from 20 (33.9%) chicken flocks and from all pigs investigated. Chicken isolates formed a distinct genotypic cluster compared with pig and human strains, although two chicken isolates (10%) clustered with pig isolates. Chicken isolates had unusually high levels of resistance against tetracycline (100%), clindamycin (100%) and erythromycin (95%); and intermediate resistance against penicillin (35%) and ceftriaxone (15%). Our findings suggest that chickens may potentially represent a source of S. suis infection to in‐contact humans and pigs.
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