Publications

Population-based incidence of herpes zoster after introduction of a publicly funded varicella vaccination program.	Past varicella infection (chicken pox) may reactivate into herpes zoster (shingles). Varicella vaccination leads to a reduction in cases of varicella that may in turn increase herpes zoster rates due to reduction in the immune boosting effect of exposure to varicella zoster virus against varicella reactivation. We assessed the impact of childhood varicella vaccination in Ontario, Canada on zoster incidence and healthcare visits, and established baseline zoster rates prior to zoster vaccine intro ...	2011	21939721
impact of varicella vaccination on health care outcomes in ontario, canada: effect of a publicly funded program?	varicella vaccines have been available for private purchase in canada since 1998. ontario introduced publicly funded varicella vaccination in 2004. we assessed the effects of private availability of varicella vaccines and subsequent implementation of a publicly funded vaccination program on varicella-related hospitalizations, emergency department (ed) use, and visits to physicians' offices in ontario. rates of hospitalizations, ed use, and office visits decreased 53% (95% ci, 48-58%), 43% (95% c ...	2008	18761386
invasive group a streptococcal disease in children and association with varicella-zoster virus infection. ontario group a streptococcal study group.	to describe the incidence and clinical features of invasive group a streptococcal (gas) disease in children in ontario and determine the risk of invasive gas infection following chickenpox.	2000	10799624
recent corticosteroid use and the risk of complicated varicella in otherwise immunocompetent children.	to determine whether recent corticosteroid use was associated with an increased risk of complicated varicella-zoster virus infection in otherwise immunocompetent children.	1996	8634737