Ascaris lumbricoides egg die-off in an experimental excreta storage system and public health implication in Vietnam
Objectives We studied the influence of different additive materials (lime, and rice husk) and aeration conditions on Ascaris lumbricoides egg die-off in 24 vaults of an experimental excreta storage unit. Methods Excreta samples were collected once every two weeks over a 181-day period. Temperature,...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Springer
2017
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/78162 |
| _version_ | 1855513851091484672 |
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| author | Tu Vu-Van Phuc Pham Duc Winkler, Mirko S. Zurbrugg, C. Zinsstag, Jakob Huong Le Thi Thanh Tran Huu Bich Hung Nguyen-Viet |
| author_browse | Hung Nguyen-Viet Huong Le Thi Thanh Phuc Pham Duc Tran Huu Bich Tu Vu-Van Winkler, Mirko S. Zinsstag, Jakob Zurbrugg, C. |
| author_facet | Tu Vu-Van Phuc Pham Duc Winkler, Mirko S. Zurbrugg, C. Zinsstag, Jakob Huong Le Thi Thanh Tran Huu Bich Hung Nguyen-Viet |
| author_sort | Tu Vu-Van |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Objectives We studied the influence of different additive materials (lime, and rice husk) and aeration conditions on Ascaris lumbricoides egg die-off in 24 vaults of an experimental excreta storage unit. Methods Excreta samples were collected once every two weeks over a 181-day period. Temperature, pH, and moisture content were recorded. A. lumbricoides eggs were quantitatively analyzed by the Romanenko method, which identified and counted live and dead eggs. Results From the first sampling (0 storage day) to the final sampling (181 storage days) the average percentage of viable A. lumbricoides eggs decreased gradually from 76.72 ± 11.23% (mean ± SD) to 8.26 ± 5.20%. The storage time and the high pH value significantly increased the die-off of helminth eggs. Over 181 storage days, all vaults option effectively reduced A. lumbricoides eggs die-off. Conclusions The best vault option, with aeration and 10% lime per total weight, met the WHO standard for excreta treatment on the 111th storage day. |
| format | Journal Article |
| id | CGSpace78162 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace781622024-01-17T12:58:34Z Ascaris lumbricoides egg die-off in an experimental excreta storage system and public health implication in Vietnam Tu Vu-Van Phuc Pham Duc Winkler, Mirko S. Zurbrugg, C. Zinsstag, Jakob Huong Le Thi Thanh Tran Huu Bich Hung Nguyen-Viet health Objectives We studied the influence of different additive materials (lime, and rice husk) and aeration conditions on Ascaris lumbricoides egg die-off in 24 vaults of an experimental excreta storage unit. Methods Excreta samples were collected once every two weeks over a 181-day period. Temperature, pH, and moisture content were recorded. A. lumbricoides eggs were quantitatively analyzed by the Romanenko method, which identified and counted live and dead eggs. Results From the first sampling (0 storage day) to the final sampling (181 storage days) the average percentage of viable A. lumbricoides eggs decreased gradually from 76.72 ± 11.23% (mean ± SD) to 8.26 ± 5.20%. The storage time and the high pH value significantly increased the die-off of helminth eggs. Over 181 storage days, all vaults option effectively reduced A. lumbricoides eggs die-off. Conclusions The best vault option, with aeration and 10% lime per total weight, met the WHO standard for excreta treatment on the 111th storage day. 2017-02 2016-12-06T14:16:13Z 2016-12-06T14:16:13Z Journal Article https://hdl.handle.net/10568/78162 en Limited Access Springer Tu Vu-Van, Phuc Pham-Duc, Winkler, M.S., Zurbrügg, C., Zinsstag, J., Huong Le Thi Thanh, Tran Huu Bich and Hung Nguyen-Viet. 2017. Ascaris lumbricoides egg die-off in an experimental excreta storage system and public health implication in Vietnam. International Journal of Public Health 62(Supplement 1): 103–111. |
| spellingShingle | health Tu Vu-Van Phuc Pham Duc Winkler, Mirko S. Zurbrugg, C. Zinsstag, Jakob Huong Le Thi Thanh Tran Huu Bich Hung Nguyen-Viet Ascaris lumbricoides egg die-off in an experimental excreta storage system and public health implication in Vietnam |
| title | Ascaris lumbricoides egg die-off in an experimental excreta storage system and public health implication in Vietnam |
| title_full | Ascaris lumbricoides egg die-off in an experimental excreta storage system and public health implication in Vietnam |
| title_fullStr | Ascaris lumbricoides egg die-off in an experimental excreta storage system and public health implication in Vietnam |
| title_full_unstemmed | Ascaris lumbricoides egg die-off in an experimental excreta storage system and public health implication in Vietnam |
| title_short | Ascaris lumbricoides egg die-off in an experimental excreta storage system and public health implication in Vietnam |
| title_sort | ascaris lumbricoides egg die off in an experimental excreta storage system and public health implication in vietnam |
| topic | health |
| url | https://hdl.handle.net/10568/78162 |
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