The viabilities of golden shiner virus (GSV), chum salmon virus (CSV), oyster reovirus 13P2 (13P2). and catfish reovirus (CRV) were compared following viruses incubation in pond water samples held at 4°. 20°, 25°, and 30°C for one month. At the three higher temperatures tested, viral infectivity was lost by day 15 for GSV, day 20 for CSV, and day 10 for CRV and 13P2. At 4°C. no infectious GSV was detected at day 15, while the other viruses showed little or no loss of infectivity during the 30-day incubation period. The survival of these viruses in natural waters appears to be sufficient to sustain fish-to-fish transmission.
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Brady et al. (1993) studied this question.
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