MONDAY, April 4 (HealthDay News) -- Human papillomavirus (HPV), a common sexually transmitted virus that accounts for most cases of cervical cancer, may also play a role in lung cancer, researchers report. In other smaller studies, HPV has been found in lung cancer patients. But what role the virus plays, if any, in the development of the disease is not known, the scientists from the International Agency for Research on Cancer (IARC) said.