Risk pathways and prevalence in slaughtered pig blood of Streptococcus suis in Vietnam
Streptococcus suis is a leading cause of bacterial meningitis in Vietnamese adults, and the major risk factors have been identified as consumption of raw pig blood (Tiet canh), and occupational exposure to pigs. Previous studies of S. suis prevalence in pigs sampled from southern Vietnam have in...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Poster |
| Language: | Inglés |
| Published: |
Hanoi School of Public Health
2015
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/68285 |
| _version_ | 1855514009628835840 |
|---|---|
| author | Sinh Dang Xuan Bryant, J.E. Unger, Fred Bao Ngo-Thanh Bich Vu Thi Ngoc Phuc Pham Duc Grace, Delia Hung Nguyen-Viet |
| author_browse | Bao Ngo-Thanh Bich Vu Thi Ngoc Bryant, J.E. Grace, Delia Hung Nguyen-Viet Phuc Pham Duc Sinh Dang Xuan Unger, Fred |
| author_facet | Sinh Dang Xuan Bryant, J.E. Unger, Fred Bao Ngo-Thanh Bich Vu Thi Ngoc Phuc Pham Duc Grace, Delia Hung Nguyen-Viet |
| author_sort | Sinh Dang Xuan |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Streptococcus suis is a leading cause of bacterial meningitis in
Vietnamese adults, and the major risk factors have been identified
as consumption of raw pig blood (Tiet canh), and occupational
exposure to pigs. Previous studies of S. suis prevalence in
pigs sampled from southern Vietnam have indicated very high
levels of commensal infection in tonsil specimens, however there
is relatively little data on prevalence rates of systemic infections
in pigs (as indicated by detection from fresh blood), and prevalence
rates from northern and central Vietnam have yet to be
described. To address these data gaps, we sampled blood from
147 slaughtered pigs in two provinces Hung Yen (North) and
Nghe An (Center) and analyzed for S. suis using PCR (16S- S.
suis and S. suis serotype 2). In addition, we surveyed 406 heads
of household and 51 slaughterhouse workers in these areas to
understand behaviors and attitudes toward consumption of raw
pig blood. A total of 33.3% of 147 pig blood samples tested
positive with S. suis, but only 1.4% (2/147) were positive to S.
suis serotype 2, the serotype most frequently associated with severe
human infections. Fifteen of 406 people interviewed (3.4%)
reported eating ‘Tiet canh’, whereas this rate was significantly
higher at 43.1% (21 of 51) for slaughterhouse workers. These
findings will be discussed in the context of the growing body of
literature on S. suis epidemiology, culinary practices involving
raw or undercooked pig products, and risk mitigation strategies
to minimize disease transmission. |
| format | Poster |
| id | CGSpace68285 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | Hanoi School of Public Health |
| publisherStr | Hanoi School of Public Health |
| record_format | dspace |
| spelling | CGSpace682852025-11-04T17:05:56Z Risk pathways and prevalence in slaughtered pig blood of Streptococcus suis in Vietnam Sinh Dang Xuan Bryant, J.E. Unger, Fred Bao Ngo-Thanh Bich Vu Thi Ngoc Phuc Pham Duc Grace, Delia Hung Nguyen-Viet swine food safety Streptococcus suis is a leading cause of bacterial meningitis in Vietnamese adults, and the major risk factors have been identified as consumption of raw pig blood (Tiet canh), and occupational exposure to pigs. Previous studies of S. suis prevalence in pigs sampled from southern Vietnam have indicated very high levels of commensal infection in tonsil specimens, however there is relatively little data on prevalence rates of systemic infections in pigs (as indicated by detection from fresh blood), and prevalence rates from northern and central Vietnam have yet to be described. To address these data gaps, we sampled blood from 147 slaughtered pigs in two provinces Hung Yen (North) and Nghe An (Center) and analyzed for S. suis using PCR (16S- S. suis and S. suis serotype 2). In addition, we surveyed 406 heads of household and 51 slaughterhouse workers in these areas to understand behaviors and attitudes toward consumption of raw pig blood. A total of 33.3% of 147 pig blood samples tested positive with S. suis, but only 1.4% (2/147) were positive to S. suis serotype 2, the serotype most frequently associated with severe human infections. Fifteen of 406 people interviewed (3.4%) reported eating ‘Tiet canh’, whereas this rate was significantly higher at 43.1% (21 of 51) for slaughterhouse workers. These findings will be discussed in the context of the growing body of literature on S. suis epidemiology, culinary practices involving raw or undercooked pig products, and risk mitigation strategies to minimize disease transmission. 2015-09-06 2015-09-24T12:58:49Z 2015-09-24T12:58:49Z Poster https://hdl.handle.net/10568/68285 en Open Access application/pdf Hanoi School of Public Health Sinh Dang-Xuan, Bryant, J.E., Unger, F., Bao Ngo-Thanh, Bich Vu Thi Ngoc, Phuc Pham-Duc, Grace, D. and Hung Nguyen-Viet. 2015. Risk pathways and prevalence in slaughtered pig blood of Streptococcus suis in Vietnam. Poster prepared for the 9th European Congress on Tropical Medicine and International Health, Basel, Switzerland, 6-10 September 2015. Hanoi, Vietnam: Hanoi School of Public Health. |
| spellingShingle | swine food safety Sinh Dang Xuan Bryant, J.E. Unger, Fred Bao Ngo-Thanh Bich Vu Thi Ngoc Phuc Pham Duc Grace, Delia Hung Nguyen-Viet Risk pathways and prevalence in slaughtered pig blood of Streptococcus suis in Vietnam |
| title | Risk pathways and prevalence in slaughtered pig blood of Streptococcus suis in Vietnam |
| title_full | Risk pathways and prevalence in slaughtered pig blood of Streptococcus suis in Vietnam |
| title_fullStr | Risk pathways and prevalence in slaughtered pig blood of Streptococcus suis in Vietnam |
| title_full_unstemmed | Risk pathways and prevalence in slaughtered pig blood of Streptococcus suis in Vietnam |
| title_short | Risk pathways and prevalence in slaughtered pig blood of Streptococcus suis in Vietnam |
| title_sort | risk pathways and prevalence in slaughtered pig blood of streptococcus suis in vietnam |
| topic | swine food safety |
| url | https://hdl.handle.net/10568/68285 |
| work_keys_str_mv | AT sinhdangxuan riskpathwaysandprevalenceinslaughteredpigbloodofstreptococcussuisinvietnam AT bryantje riskpathwaysandprevalenceinslaughteredpigbloodofstreptococcussuisinvietnam AT ungerfred riskpathwaysandprevalenceinslaughteredpigbloodofstreptococcussuisinvietnam AT baongothanh riskpathwaysandprevalenceinslaughteredpigbloodofstreptococcussuisinvietnam AT bichvuthingoc riskpathwaysandprevalenceinslaughteredpigbloodofstreptococcussuisinvietnam AT phucphamduc riskpathwaysandprevalenceinslaughteredpigbloodofstreptococcussuisinvietnam AT gracedelia riskpathwaysandprevalenceinslaughteredpigbloodofstreptococcussuisinvietnam AT hungnguyenviet riskpathwaysandprevalenceinslaughteredpigbloodofstreptococcussuisinvietnam |