www.sciencedaily.com/releases/201...112091015.htm
Abstract, Science News, 2013
In some lamb herds, a mortality rate of 30 percent has been recorded, with no predators involved in these losses. The situation is so serious that the sheep industry could be under threat. It is therefore crucial to identify the causes and implement preventative measures. The answer may be found somewhere within the genetics of the sheep and the course of the disease, assessment and control of tick populations and biological control of ticks.