The positive results from the percentage means that there is a cow in a dairy cooperative in each ever expose with infections or diseases may occur depending on the cooperative without good measures to prevent disease.
The percentage results positive, it means that a dairy cow in Chiang Mai who expose. With prior infection or disease may be more cooperative if no preventive measures are good.
From percentage effects. Positive means to have a cow in each dairy cooperatives in Chiang Mai used to expose. With infection or disease may depend on the cooperative before that, if there is no good disease prevention