Varicella is associated with a 47% decrease in the risk of glioma (brain tumor) among people under the age of 40 years, and a 21% for people of all ages.
Varicella is associated with a 60% decrease in the risk of glioma, and herpes zoster with a 50% decrease..
Presence of varicella antibodies is associated with 59% decrease in the risk of glioma. More: [1], [2], [3] , [4], [5].
Subjects who reported a history of infectious diseases (e.g., colds, flu) showed a 30% reduction in risk of glioma (brain tumor) development.