(HealthDay)—Following quadrivalent human papillomavirus (HPV4) vaccination, girls age 12 to 17 years do not have increased risk of autoimmune disorders, according to a study published recently in CMAJ, the journal of the Canadian Medical Association. Erin Y. Liu, from Queen’s University in Kingston, Canada, and colleagues conducted a population-based retrospective cohort study using Ontario’s administrative health and vaccination databases from […]

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