Concurrent infections with multiple human papillomavirus (HPV) types in the New Technologies for Cervical Cancer (NTCC) screening study

Multiple HPV infections occurred more frequently than predicted by chance. The excess of multiple infections was small, though not completely absent, after controlling for all sources of common correlation between HPV types. The present analysis of the NTCC screening study showed no evidence that specific HPV types have the tendency to be found more or less often than others in coinfections.