Case-Control Study of Cancer among US Army Veterans Exposed to Simian Virus 40-contaminated Adenovirus Vaccine
Case-Control Study of Cancer among US Army Veterans Exposed to Simian Virus 40-contaminated Adenovirus Vaccine
Dana E. M. Rollison1, William F. Page2, Harriet Crawford2, Gloria Gridley3, Sholom Wacholder3, Jennifer Martin4, Richard Miller2 and Eric A. Engels3
1 Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD.
2 Medical Follow-up Agency, Institute of Medicine, the National Academies, Washington, DC.
3 Division of Cancer Epidemiology and Genetics, National Cancer Institute, Department of Health and Human Services, Rockville, MD.
4 RTI International, Rockville, MD.
Simian virus 40 (SV40) was an accidental contaminant of vaccines produced in monkey kidney tissue cultures in the 1950s and early 1960s, including a parenteral adenovirus vaccine given to several hundred thousand US military recruits. Detection of SV40 DNA in tumor tissues by some laboratories suggests that SV40 contributes to human cancers. To determine if entry into US Army service during periods of administration of SV40-contaminated adenovirus vaccine was associated with an increased risk of cancer, the authors conducted a case-control study of cancer occurring in male Army veterans who entered service in 1959-1961.
Cases of brain tumors (n = 181), mesothelioma (n = 10), and non-Hodgkin's lymphoma (n = 220) were identified through a Veterans Administration hospital discharge database, as were colon cancer and lung cancer controls (n = 221). Exposure to adenovirus vaccine was assigned on the basis of known periods of adenovirus vaccine administration and dates of Army entry obtained for cancer cases and controls. The odds ratios associated with exposure to SV40-contaminated adenovirus vaccine were 0.81 (95% confidence interval (CI): 0.52, 1.24) for brain tumors, 1.41 (95% CI: 0.39, 5.15) for mesothelioma, and 0.97 (95% CI: 0.65, 1.44) for non-Hodgkin's lymphoma. These findings do not support a role for SV40 in the development of these cancers.
brain neoplasms; lymphoma, non-Hodgkin; mesothelioma; military personnel; simian virus 40; United States Department of Veterans Affairs
Abbreviations: Abbreviations: BIRLS, Beneficiary Identification and Records Locator Subsystem; CI, confidence interval; ICD, International Classification of Diseases; OR, odds ratio; PTF, Patient Treatment File; SV40, simian virus 40.