Efficacy of Egg Disinfection by Povidone-Iodine Solutions for Inactivation of Causative Agent of Bacterial Kidney Disease <i>in vitro</i>
Effect of povidone-iodine (PVI) treatment on the viability of Renibacterium salmoninarum, the causative agent of bacterial kidney disease (BKD) was investigated in vitro. A novel dilution plating for Tok46 strain revealed that WOAH's shortest recommended treatment for hardened eggs (100 ppm available iodine for 10 min) achieved 4.6-log reduction in the colony-forming units. Treatment with higher concentrations of available iodine achieved further reduction. The effectiveness at 100 ppm was validated across two additional strains by turbidity measurements. The disinfection using the conventional procedures likely reduces transmission risk of BKD while those with higher concentration of PVI will be more effective.
Authors
- Dominic K. Bagenda (ORCID: https://orcid.org/0000-0001-7623-0118)
- Jun Nagata
- Sayo Morimoto
- Kenichi Watanabe (ORCID: https://orcid.org/0000-0002-6063-8044)
- Hisae Kasai
- Makoto Ameno
- Keito Yamaguchi
Institutions
- Tokyo University of Agriculture (JP)
- Hokkaido University (JP)
- Future University Hakodate (JP)
Publication Details
- Journal
- Fish Pathology
- Published
- 2024-09-15
- DOI
- https://doi.org/10.3147/jsfp.59.91
- Primary Topic
- Healthcare and Venom Research
- Type
- article
- Field-Weighted Citation Impact
- 0.00