Additional file 1. Results of Cross-validation and Akaike Information Criterion (AIC) on slaughterhouse data. PH, parasitic hepatitis; MPS, mycoplasmal pneumonia of swine; IH, interstitial hepatitis;
Swine are an important intermediate host for emergence of pandemic influenza. Vietnam is the largest swine producer in South East Asia. Systematic virological and serological surveillance of swine inf
NA = not applicable. *Acute-phase patients with negative MAT result were diagnosed by seroconversion; convalescent patients with negative MAT result were diagnosed based on the acute MAT titer.