General Information: Mycoplasma hyorhinis HUB-1 was isolate from the respiratory tract of swine. Mycoplasma hyorhinis, though generally considered being a swine pathogen, is found most commonly infecting laboratory cell lines including human cells. Recently, an increasing body of work suggests that chronic infections of M. hyorhinis may cause oncogenic transformation. Infection with mycoplasma is a common problem in cell cultures, with Mycoplasma hyorhinis being the predominant species.