Letter to the Editor: Methodological Issues Regarding the Matching in Matched Case‐Control Study

Reply

“…We thank Almasi‐Hashiana et al for their interest in and constructive comments on our study investigating the factors associated with seroreversion of anti–hepatitis A antibodies among human immunodeficiency virus (HIV)‐positive patients who had completed two doses of hepatitis A vaccination with documented serconversion . In an infectious disease outbreak, the risk of exposure to the infectious agent may evolve with time and location .…”