eli5: Does the salt water of the Oceans make aquatic Sealife less susceptible to infection?

Question

eli5: Does the salt water of the Oceans make aquatic Sealife less susceptible to infection?

In: 247

Answer 1

All life in the sea evolved to tolerate the saltwater, and that includes the fish, microorganisms, and infectious agents. It may be that saltwater will kill many terrestrial pathogens, but the ones in the sea evolved to thrive in the saltwater.