Introduction: The threat of new SARS-CoV-2 variants indicates the need to implement COVID-19 vaccine booster programs. The aim of this study was to identify the level of booster acceptance and its determinants. Methods: A cross-sectional online survey was conducted in Jakarta and Bali, Indonesia. Booster acceptance was divided into three categories: non-acceptor, planned acceptor, and actual acceptor. The primary independent variables were health beliefs, media influence, and trust in authoritative sources. Other covariates included demographics, socioeconomic status, and COVID-19 history. A primary analysis was conducted through multinomial logistic regression. The effects of the hypothetical situations on booster acceptance were tested using the Wilcoxon signed-rank test. Results: The final analysis included 2674 respondents with a booster acceptance rate of 56.3% (41.2% planned acceptors, 15.1% actual acceptors). Health beliefs, social media influence, and trust in authoritative information sources were identified as determinants for planned and actual booster acceptance. Socioeconomic status indicators were also identified as determinants for actual booster acceptance. Booster acceptance was increased in hypothetical scenarios involving booster requirements for work, travel, and accessing public places. Conclusions: Booster acceptance was found to be lower than the predicted primary vaccine acceptance prior to its launch. The acceleration of booster coverage requires strategies that leverage health beliefs and focus on people with a lower socioeconomic status.

High-risk behavior placed inmates to be one of certain population to be vulnerable to sexually-transmitted infections (STI) due to the discontinuity of sexual needs in imprisonment. The purpose of this study is to describe the history of STIs-risked sexual behavior of inmates before and during imprisonment. This research was an observational study with a cross sectional study design. The samples were 100 male inmates in Semarang Class I Penitentiary. Univariate data analyzed and presented in frequency distribution. Characteristics of respondents in this study include the majority of respondents aged less than 40 years (70%), completed high school (42%), and married (48%). Sexual orientation before and during imprisonment were all heterosexual (100%). Historical description of STIs-risked sexual behavior with a high risk category were 53%, while during imprisonment were 71%. Based on sexual behavior in prison, 54% doing masturbation involving genital stimulation and pornography, 13% touching intimate parts in the visiting room, 5% had intercourse with the opposite sex in prisons. This findings implied that the sexual needs of inmates in prison are real and need to be channeled in a healthy manner.

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