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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http://dx.doi.org/10.1111/zph.12711 | DOI Listing |
Res Vet Sci
December 2024
Metabolic Modifiers for Aquaculture, Agricultural Biotechnology Department, Center for Genetic Engineering and Biotechnology (CIGB), 31st Avenue and 190, Havana 10600, Cuba. Electronic address:
Vet Microbiol
January 2025
Department of Animal Science, ETSEA, Universitat de Lleida, Lleida 25198, Spain. Electronic address:
Streptococcus suis (S. suis) is a major pathogen for pigs, causing large economic losses to the swine industry. Moreover, this bacterium has a zoonotic potential, being capable of infecting humans in close contact with pigs or, less frequently, through contact with pork products.
View Article and Find Full Text PDFPorcine Health Manag
January 2025
Department of Pathology, University of Veterinary Medicine Budapest, Üllő, Hungary.
Background: Streptococcus suis (S. suis) is a major swine pathogen and a significant zoonotic agent, causing substantial economic losses in the swine sector and having considerable public health importance. The control and management of S.
View Article and Find Full Text PDFEnviron Res
January 2025
College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China; Henan Engineering Research Center of Livestock and Poultry Emerging Disease Detection and Control, Luoyang, China. Electronic address:
Streptococcus suis (S. suis) represents a significant bacterial pathogen, with its zoonotic transmission from infected or deceased pigs to humans posing a serious threat to public health. The type IV secretion system (T4SS), a critical virulence factor of S.
View Article and Find Full Text PDFVaccine
January 2025
College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, Yangzhou University (JIRLAAPS), Yangzhou, China. Electronic address:
Streptococcus suis (S. suis) is a major pathogen that poses a long-term threat to swine populations. Due to its foodborne transmission, this pathogen has recently emerged as a leading cause of meningitis in humans, presenting a significant public health challenge.
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