Inactivation of Ichthyophonus spores using sodium hypochlorite and polyvinyl pyrrolidone iodine
Journal of Fish Diseases
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Abstract
Chlorine and iodine solutions were effective at inactivating Ichthyophonus spores in vitro. Inactivation in sea water increased directly with halogen concentration and exposure duration, with significant differences (P < 0.05) from controls occurring at all chlorine concentrations and exposure durations tested (1.5-13.3 ppm for 1-60 min) and at most iodine concentrations and exposure durations tested (1.2 ppm for 60 min and 5.9-10.7 ppm for 1-60 min). However, 10-fold reductions in spore viability occurred only after exposure to halogen solutions at higher concentrations and/or longer durations (13 ppm total chlorine for 1-60 min, 5.9 ppm total iodine for 60 min, and 10.7 ppm total iodine for 1-60 min). Inactivation efficacy was greater when halogen solutions were prepared in fresh water, presumably because of combined effects of halogen-induced inactivation and general spore instability in fresh water. The results have practical implications for disinfection and biocontainment in research laboratories and other facilities that handle live Ichthyophonus cultures and/or infected fish.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Inactivation of Ichthyophonus spores using sodium hypochlorite and polyvinyl pyrrolidone iodine |
| Series title | Journal of Fish Diseases |
| DOI | 10.1111/j.1365-2761.2008.00959.x |
| Volume | 31 |
| Issue | 11 |
| Year Published | 2008 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Journal of Fish Diseases |
| First page | 853 |
| Last page | 858 |
| Google Analytic Metrics | Metrics page |