[Oncornavirus D associated antigen in cultured human and animal cells]

A large number of long-term continuous (LTC) and primarily trypsinized (PT) human and animal cell cultures were examined for the presence of a new oncornavirus D-associated antigen. All the PT cultures were found to be free from this antigen as also human diploid cells and LTC cells of man, rabbit, mouse, dog, swine and bat. LTC cells of monkey, bull, and Syrian hamster, however, were found to contain oncornavirus D-associated antigen identical to that previously found in HeLa, HEp-2 and J-96 cells. The detection of oncornavirus D-associated antigen in cells may indicate their infection with this virus.