The association between the frequency of manifest infectious diseases and cancer risk was investigated in a case-control study…
A history of common colds or gastroenteric influenza prior to the interview was found to be associated with a decreased cancer risk.
“[T]hree or more common colds per year (on average)” versus “no common cold within the last 5 years prior to the interview”…
While the findings are supported by previous studies and fit well into the results of other fields of cancer research, a conclusive interpretation and biological explanation cannot yet be given.