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All Journal Berita Kedokteran Masyarakat Proceeding Mulawarman International Conference on Tropical Public Health
Samsu Aryanto
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Nursing Public Health

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Examining the Impact of Rainfall Patterns on Leptospirosis Cases in Bantul District, Indonesia: A Four-Year Ecology Study 2020-2023 Saadatar Rohmah, Nilna; Samsu Aryanto; Bayu Satria Wiratama
BKM Public Health and Community Medicine The 12th UGM Public Health Symposium
Publisher : Universitas Gadjah Mada

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Purpose: This study aimed to explore the correlation between rainfall patterns and the incidence of human leptospirosis in Bantul District, Indonesia. Method: The study utilized an ecological design analyzing leptospirosis cases in Bantul District from 2020 to 2023, sourced from the Health Department of Bantul District and Rainfall Trends data from the online central database of the Meteorology, Climatology, and Geophysics Agency (BMKG), especially in Station Climatology DI Yogyakarta. Results: The study identified a total of 489 cases from 2020-2023, with 80 cases of leptospirosis in 2020, 53 cases in 2021, 167 cases in 2022, and 269 cases in 2023 disaggregated towards male (86,91%), than female (13,09%). The majority of leptospirosis patients in Bantul District were middle-aged, with many of them recovering after treatment in various healthcare facilities in the area, although there have been some recorded 43 cases of death. The linear regression analysis revealed a coefficient of 1.3604 (95% CI: 0.758512, 2.962288) and a p-value of less than 0.001 for the rainfall variable, indicating a significant positive association between rainfall and leptospirosis cases, with a minimum rainfall value of -21.833, a maximum of 25.967 and a median of 0.063. The multiple R-squared value is 0.3265, indicating that approximately 32.65% of the variability in the number of leptospirosis cases can be explained by the variability in rainfall. Conclusion: The study provides additional evidence supporting the influence of rainfall on the occurrence of leptospirosis in Bantul District, Indonesia. The results emphasize the importance of monitoring rainfall patterns as a potential predictive factor for leptospirosis cases in tropical regions like the Bantul District. Efforts to prevent and control leptospirosis in the area should consider environmental factors such as rainfall. However, it is crucial to acknowledge the study’s limitations, including the broad geographical coverage of BMKG data.
Investigation of Food Poisoning Outbreak in X Senior High School in Bantul District, Indonesia 2024 Muhammad Reza Firdaus; Nilna Sa’adatar Rohmah; Samsu Aryanto; Bayu Satria Wiratama
Mulawarman International Conference on Tropical Public Health Vol. 1 No. 1 (2025): The 3rd MICTOPH
Publisher : Faculty of Public Health Mulawarman University, Indonesia

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Background : On 7th October 2024, the Bantul District Health Office received reports that students, parents, and teachers at X Senior High School were sick with similar symptoms, suspected after consuming food at the “Character Strengthening” activity. Objective : This investigation aimed to confirm and describe the outbreak for control measures. Research Methods : Active case finding and a 1:1 case-control study were conducted. Cases were defined as people who experienced gastrointestinal symptoms after consuming food during the event on 6th October 2024. Data on characteristics, food consumption, and environment were collected using a questionnaire via Google Forms. Food samples were tested at BLKK Yogyakarta laboratory. Data were analyzed descriptively and statistically (chi-square). Results : Of 150 people, 91 (60.67%) were identified as cases. Cases were 80.22% female, 60.44% aged 10-18, and 56.04% students. The majority of symptoms were diarrhea (80.22%), abdominal pain (59.34%), and weakness (26.37%). The outbreak occurred on 6th-7th October 2024, with an average incubation period of 10.35 hours (1.00-21.55 hours). Stir-fried chicken gizzards and liver had the highest risk, students who consumed this food were 6.4 (95% CI: 2.1-23.3) times more likely to become cases. Improper cooking processes and poor hygiene practices were identified as risk factors. Laboratory tests confirmed Bacillus cereus in the Stir-fried chicken gizzards and liver. Conclusion : There was a food poisoning outbreak in X Senior High School on 6th-7th October 2024 caused by Stir-fried chicken gizzards and liver contaminated by Bacillus cereus. Improper cooking processes and poor hygiene cause contamination. The food handler’s knowledge of hygiene and sanitation during cooking needs improvement
Epidemiological Study of Chikungunya Outbreak in Kapanewon Imogiri Bantul Indonesia, April to May 2024 Nilna Sa'adatar Rohmah; Muhammad Reza Firdaus; Samsu Aryanto; Bayu Satria Wiratama
Mulawarman International Conference on Tropical Public Health Vol. 1 No. 1 (2025): The 3rd MICTOPH
Publisher : Faculty of Public Health Mulawarman University, Indonesia

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Background : On 6 May 2024, the Bantul District Health Office and Field Epidemiology Training Program (FETP) identified a cluster of Chikungunya-like illnesses in the Imogiri I Public Health Center area. Objective : Prompting an investigation to confirm the outbreak and identify risk factors. Research Methods : We conducted a 1:1 unmatched case-control study design. Cases were individuals with fever and arthralgia, with or without positive chikungunya lab results, living in Garjoyo and Karangtalun, Imogiri Sub-district. Controls were healthy residents in the same neighbourhood. Data on demographics and risk factors. Were collected through standardized questionnaires. Blood samples from 5 to 10 individuals per hamlet were tested using a Rapid Diagnostic Test (RDT). Logistic regression analyzes significant factors. Results : We identified 86 suspected cases, resulting in an attack rate (AR) of 8.53% from a total population of 1008. 172 individuals were interviewed, comprising 86 cases and 86 controls. The highest AR was observed among females (60.92%) and in RT 03 KarangTalun (72.1%). Primary symptoms included fever and arthralgia (91.86%). The larval-free index in both villages was below 95%, with the lowest index in KarangTalun RT 03 (15.4%). Out 23 RDT samples, 12 confirmed Chikungunya (52.17%). Multivariate analysis indicated that lower income (OR=1.97, 95% CI:0.85- 3.09) and the presence of mosquito larvae (OR=1.81, 95% CI:0.41-3.20) significantly increased infection risk. Conclusion : The Chikungunya outbreak in Kapanewon Imogiri from April to May 2024 was linked to environmental and socioeconomic risk factors. These findings highlight the need for targeted public health interventions and proactive vector control.
Co-Authors Bayu Satria Wiratama Muhammad Reza Firdaus Nilna Sa'adatar Rohmah Nilna Sa’adatar Rohmah Saadatar Rohmah, Nilna