Our results do not suggest that H pylori infection is a probable cause of part of gastrointestinal symptoms among Flemish municipal sewage workers of WWTPs.

Although Riddell and colleagues' timely update on managing sharps injuries is of great practical use, we have a couple of questions about the hepatitis B management algorithm based on the recipient's vaccination history.

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In a recent report in this journal presented by Komatsu et al., the differences in the hepatitis B (HB) vaccination policies for health-care workers (HCWs) among three countries were presented. 1 A discordance about the protective anti-HB surface antibody (anti-HBs) threshold level, and if or when to recommend a booster dose or doses of HB vaccine after a primary course of vaccination, was found. TheseThe author has no conflict of interest.