Study Supports Viral Origin for Some ALL
Newborns with cytomegalovirus (CMV) infection had almost a fourfold increase in the risk of developing acute lymphoblastic leukemia (ALL) as compared with uninfected infants, investigators reported.

A comparison of blood samples from children with ALL and a healthy control group showed that the ALL group was 3.71 times more likely to have in utero exposure to CMV. Comparison of bone marrow samples from four cohorts with ALL and a group of patients with acute myeloid leukemia (AML) demonstrated CMV infection at diagnosis in all four ALL cohorts but none of the patients with AML....

http://www.medpagetoday.com/hematologyoncology/leukemia/62397
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