Nucleotide sequence of the bovine viral diarrhoea virus Osloss strain: comparison with related viruses and identification of specific DNA probes in the 5' untranslated region.

The nucleotide sequence of the cytopathic Osloss isolate of bovine viral diarrhoea virus (BVDV) was deduced from overlapping cDNA clones and from PCR products. The Osloss genome is an RNA molecule of positive polarity containing 12,480 nucleotides and having the capacity to code for a polyprotein of 3975 amino acids. The presence of the previously described internal stop codon in this viral sequence was disproved after direct sequencing of the appropriate PCR-amplified fragment.

Cysts of the semilunar cartilages of the knee: a new approach by ultrasound imaging. A study of six cases and review of the literature.

The authors present six cases of cysts of the semilunar cartilages of the knee detected by ultrasonography, all of them confirmed at the time of surgery. Five of these lesions were cysts of the lateral meniscus; one lesion was a cyst of the medial meniscus. Because of ultrasonography, an accurate diagnosis of meniscal cysts is within the reach of the radiologist; it is also possible to visualize the extension of these lesions in a correct way, thereby being of great help to orthopedic surgeons.