(Thanks to ajewishisrael.com) Tel Aviv University’s Eugene Rosenberg has used a natural therapeutic virus BA3 to protect Eilat’s corals from “white plague” bacteria. Professor Rosenberg discovered that some corals had immunity from Vibrio coralliilyticus because they already contained BA3.
http://www.popsci.com/science/article/2011-04/bleaching-threatens-coral-phage-therapy-could-prevent-ghost-coral