Specific Information for Manitoba
There were 25 dogs with HW (32 in 1997). There were 13,514 dogs tested (14,190 in 1997) to give a prevalence of 0.18% (0.23% in 1997). Sixteen of the dogs with HW had not been on medication and the prevalence in unprotected dogs was 0.46% (0.77% in 1997). There were 12 infected dogs which were not treated and 3 were euthanized. There were 16 infected dogs that had never left the province and for 9 the movements were unknown.