Do Fishes Fall Ill?


Fishes, like most animals, have their immune system in their backbone

Their immune system produces antibodies that detect and bind to substances invading the body – similar to what white blood corpuscles do to a virus that has invaded your body.


Just like humans take a preventive vaccine shot to battle future infections or diseases, it is possible to vaccinate a fish against future virulent infection with a vaccination shot. But, these can only be for fishes that are in captivity, not for those in the wild. 

Fishes also have a natural cover – a sticky mucus that traps microbes and contains antimicrobial chemicals. 


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