Viral hemorrhagic septicemia affects both freshwater and marine fish.

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Multiple Choice

Viral hemorrhagic septicemia affects both freshwater and marine fish.

Explanation:
Viral hemorrhagic septicemia is caused by VHSV, a virus that can infect many fish species across both freshwater and saltwater environments. It spreads through water, infected fish, and contaminated gear, so it isn’t limited to one salinity. Outbreaks have been documented in freshwater species like rainbow trout and in marine species such as herring and cod, showing that the disease can move between and persist in both systems. While some hosts or regions may show more impact in one environment, the evidence clearly supports that VHS affects fish in both freshwater and marine settings, making the statement true.

Viral hemorrhagic septicemia is caused by VHSV, a virus that can infect many fish species across both freshwater and saltwater environments. It spreads through water, infected fish, and contaminated gear, so it isn’t limited to one salinity. Outbreaks have been documented in freshwater species like rainbow trout and in marine species such as herring and cod, showing that the disease can move between and persist in both systems. While some hosts or regions may show more impact in one environment, the evidence clearly supports that VHS affects fish in both freshwater and marine settings, making the statement true.

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