Fig. 1From: Emergence of mosaic recombinant strains potentially associated with vaccine JXA1-R and predominant circulating strains of porcine reproductive and respiratory syndrome virus in different provinces of ChinaClinical symptoms, gross lesions, and PRRSV detection by immunohistochemical analysis. The representative sick pigs exhibited blue ears, blue noses (a), and conjunctivitis (b); hyperplasia and edema in the lungs (c), and hemorrhagic spots in the lymph nodes (d). There were obvious PRRSV antigens in the lung tissue of diseased piglets (e) as compared to healthy piglets (f). Bar = 50 μmBack to article page