There is no need to screen more frequently than every three years, since the cumulative occurrence of a cervical cancer
precursor lesion called a CIN3 + during the three years after a negative HPV test was less than 1 percent.
Terkeltaub enlisted colleagues at The Scripps Research Institute in La Jolla, California, and the University of California, San Diego, to try to pin down how these
precursors,
called monocytes, might be attracted to the
lesions.