To assess healthcare workers' knowledge of novel coronavirus disease 2019 (COVID-19) in the early phase of the outbreak in Indonesia. Methods: A cross-sectional survey was conducted in 12 hospitals in Indonesia from March 6 to March 25, 2020. Healthcare workers' knowledge on COVID-19 was assessed, and demographic data, workplace characteristics, and medical professional characteristics as well as the current local situation of COVID-19 were collected. To characterize determinants associated with knowledge, a logistic regression analysis was employed. Results: Out of 288 healthcare workers who completed the interview-assisted questionnaire, 149 (51.7%) respondents had a good knowledge. Nurses and other types of healthcare workers had lower odds of having good knowledge compared to doctors: adjusted odds ratio (aOR): 0.38; 95% CI: 0.20-0.72 and aOR: 0.31; 95% CI: 0.13-0.73, respectively. Compared to healthcare workers who had medical practice experience less than 5 years, those who had worked for more than 10 years had lower knowledge (aOR: 0.43; 95% CI: 0.20-0.90). Healthcare workers who worked in the infection department had higher knowledge compared to those in the emergency room (aOR: 14.33; 95% CI: 3.67-55.88). Conclusions: The knowledge of COVID-19 among surveyed healthcare workers was relatively low. The COVID-19 response in Indonesia will require further education and enhancement of the capacity of healthcare workers in the emergency room where COVID-19 patients may be treated the earliest.

Objective To explore and understand the attitude towards dengue vaccination and its modifiable determinants among inhabitants of Aceh (northern Sumatra Island, Indonesia), the region that was most severely affected by the earthquake and tsunami of 26 December 2004. Methods A community-based, cross-sectional study was conducted among 535 healthy inhabitants in nine regencies (Kabupaten or Kotamadya) of Aceh that were selected randomly from November 2014 to March 2015. A set of validated, pre-tested, structured questionnaires was used to guide the interviews. The questionnaires covered a range of explanatory variables and one outcome variable (attitude to dengue vaccination). Multi-step logistic regression analysis and Spearman's rank correlation were used to test the role of explanatory variables for the outcome variable. Results More than 70% of the participants had a poor attitude towards dengue vaccination. Modifiable determinants associated with poor attitude to dengue vaccination were low education level, working as farmers and traditional market traders, low socioeconomic status and poor knowledge, attitude and practice regarding dengue fever (P < 0.05). The KAP domain scores were correlated strongly with attitude to dengue vaccination, rs = 0.25, rs = 0.67 and rs = 0.20, respectively (P < 0.001). Multivariate analysis found that independent predictors associated with attitude towards dengue vaccination among study participants were only sex and attitude towards dengue fever (P < 0.001). Conclusions This study reveals that low KAP regarding dengue fever, low education level and low socioeconomic status are associated with a poor attitude towards dengue vaccination. Therefore, inhabitants of suburbs who are working as farmers or traditional market traders with low socioeconomic status are the most appropriate target group for a dengue vaccine introduction program.