| serotypic differentiation of rotaviruses in field samples from diarrheic pigs by using nucleic acid probes specific for porcine vp4 and human and porcine vp7 genes. | of 216 fecal and intestinal samples collected from nursing or weaned diarrheic pigs in the united states and canada, 57 were identified as group a rotavirus positive by rna electrophoresis and silver staining. fifty-seven and 52 rotavirus-positive samples were analyzed by hybridization with gottfried and osu pcr-derived gene 9 and 4 probes, respectively. only 17 samples were identified with either homologous vp4 (p)- or vp7 (g)-coding genes or both. one rotavirus identified as g4 and p7 was simi ... | 1994 | 8150940 |