Last night my best ram lamb died suddenly at 5 months of age. He had been vaccinated three months ago for Enterotoxemia, but he got it anyway and died. At 9:30 P.M. he appeared fine and playful. When I checked this morning at 8:00 A.M., he was cold and stiff, his eyes already opaque. How can this happen so quickly and without any symptoms? Has anyone else had an experience like this? This is my first in the six years I've had sheep.