There are few outward signs that a fish has LMBV. LMBV is not known to infect humans, and infected fish are safe to eat — as long as the fish is thoroughly cooked. Largemouth bass virus re-emerges 15 years later October 15, Leave a Reply Cancel reply Your email address will not be published. The best way to halt the virus is by anglers and boaters properly cleaning their equipment and doing their part to prevent the spread, according to the DNR:. Newsletter Signup Email Address. Affected fish usually appear normal, although they may be lethargic, swim slowly and be less responsive to activity around them. A reprieve for some northern pike in Utah Lake.