Table 1 Classification of swine herds by porcine epidemic diarrhea status
Status | Antigen and antibody status | Clinical symptoms |
|---|---|---|
PED Outbreak | Antigen: Positive Antibody: Positive | Number of infected piglets in the unit > 15% Severe clinical symptoms of PED, piglets death Vaccinated |
PED Active | Antigen: Positive Antibody: Positive | Number of infected piglets in the unit < 15% Mild clinical symptoms of PED, no piglets death Vaccinated |
PED Stable | Antigen: Negative Antibody: Positive | No clinical symptoms of PED, no piglets death Antigen: negative Vaccinated |
PED Negative | Antigen: Negative Antibody: Negative | Swine farm: no PED history No vaccine |