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Tytuł:
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An epidemiological study of Streptococcus suis prevalence among swine at industrial swine farms in Northern Vietnam.
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Autorzy:
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Nguyen NTT; Duke University School of Medicine, Duke University, Durham, NC 27710, United States.
Luu YTH; Bacteriology Department, National Institute of Veterinary Research, Hanoi 100000, Viet Nam.
Hoang TD; Virology Department, National Institute of Veterinary Research, Hanoi 100000, Viet Nam.
Nguyen HX; Bacteriology Department, National Institute of Veterinary Research, Hanoi 100000, Viet Nam.
Dao TD; Virology Department, National Institute of Veterinary Research, Hanoi 100000, Viet Nam.
Bui VN; Virology Department, National Institute of Veterinary Research, Hanoi 100000, Viet Nam.
Gray GC; Duke University School of Medicine, Duke University, Durham, NC 27710, United States.; Duke Global Health Institute, Duke University, Durham, NC 27710, United States.; Emerging Infectious Diseases Programme, Duke-NUS Medical School, Singapore.; Global Health Center, Duke Kunshan University, Kunshan, China.
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Źródło:
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One health (Amsterdam, Netherlands) [One Health] 2021 Apr 24; Vol. 13, pp. 100254. Date of Electronic Publication: 2021 Apr 24 (Print Publication: 2021).
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Original Publication: [Amsterdam] : Elsevier B.V., [2015]-
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References:
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Contributed Indexing:
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Keywords: Bioaerosol; Streptococcus suis; Swine; Swine farms; Swine workers
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Entry Date(s):
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Date Created: 20210517 Latest Revision: 20220423
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Update Code:
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20240105
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PubMed Central ID:
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PMC8102613
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DOI:
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10.1016/j.onehlt.2021.100254
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PMID:
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33997238
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Introduction: Streptococcus suis is a zoonotic pathogen found in swine that may cause systemic infection in humans. S. suis is endemic in Southeast Asia and is the leading cause of adult meningitis in Vietnam. Given Vietnam's increasing centralization of the swine industry, we sought to estimate the prevalence of S. suis on large swine farms in Northern Vietnam.
Methods: A cross-sectional, one-health-oriented, surveillance study for S. suis was conducted between October 2019-March 2020. Swine oral, swine worker nasal, and bioaerosol samples were collected from four large-scale swine farms (>500 swine) in three provinces in Northern Vietnam: Lao Cai, Bac Giang, and Quang Ninh. Samples were evaluated for presence of S. suis growth on blood agar plates and confirmed with conventional polymerase chain reaction.
Results: The authors found that 4/174 (2.3%, 95% CI: 0.6-5.8%) of swine oral samples and 1/58 (1.7%, 95% CI: 0-9.2%) bioaerosol samples were positive for S. suis by bacterial culture and conventional PCR. S. suis was not detected in any swine worker nasal wash samples. There was no significant relationship between sampling location and month of sample collection with results of swine oral or bioaerosol samples.
Conclusion: Compared to previous reports from slaughterhouses in Vietnam, the lower than expected prevalence of S. suis, supports the notion that that recent efforts to centralize Vietnam's pork industry through establishment of large-scale farms with better biosecurity may have been effective in limiting S. suis prevalence on these large farms.
Competing Interests: The authors have no conflicts of interest to declare.
(© 2021 The Authors. Published by Elsevier B.V.)
