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A significant monkeypox (mpox) outbreak occurred in 2022, particularly involving sexual and gender minority (SGM) groups. Stigma and misperceptions have led to fear of being labeled a member of the SGM group when obtaining immunization for mpox. We hypothesized that the most recommended injection site, intradermal injection in the forearm, stresses stigmatization. We conducted an online survey in a medical center in Taiwan between May 2023 and June 2023 among adults who were going to receive the second preexposure vaccination. The questionnaire comprised questions about physical and psychological impacts of the first mpox vaccination and the preference for the second vaccination location and factors influencing the preference. A total of 2,827 individuals (98.4% male) completed the questionnaires. Intradermal injection in the forearm was related to greater physical and psychological impacts of local adverse events, especially discoloration. "Beauty," "scar," and "others' view" were the most significant factors influencing preference for vaccination regimens. Compared to intradermal injection in the forearm, subjects who cared about "others' views" were likely to prefer vaccination in the deltoid. The odds ratio for preferring intradermally injection in the deltoid over in the forearm was 1.88 (95% CI 1.38-2.56). The odds ratio for preferring subcutaneous injection in the deltoid over intradermally injection in the forearm was 1.69 (95% CI 1.23-2.32). The odds ratio for preferring intradermally injection in the deltoid regardless of the route over intradermally injection in the forearm was 2.11 (95% CI 1.53-2.92). This study demonstrated the adverse events of different mpox vaccination regimens and their association with stigma. Recognizing the factors affecting the preference for mpox vaccine regimens is crucial for easing the mental stress of vaccinee.
Shen et al. (Wed,) studied this question.