Deborah Bouchard Animal Health Laboratory University of Maine 207.581.2767 deborah.bouchard@maine.edu   MSX (Happlosporidium neslonii) is a parasite that infects adult oysters, killing as much as 30% in a single oyster bed. Although MSX has been present in Maine before, in 2010 a large-scale outbreak occurred in the Damariscotta River, the heart of Maine’s oyster growing … Continue reading R-10-10 Emergency surveillance monitoring for MSX disease