Epidemiology is the study of how diseases spread through populations and what factors influence their patterns. Rather than focusing on individual patients, this field examines broader trends to identify outbreaks, track transmission, and guide public health decisions. By analyzing data on infection rates and risk factors, researchers work to prevent future health crises and protect communities worldwide.

On Gist.Science, we process every new preprint in this category directly from medRxiv to make these critical findings instantly accessible. For each study, we provide both a plain-language explanation for general readers and a detailed technical summary for specialists. This dual approach ensures that vital insights into disease dynamics are understood clearly and quickly by everyone who needs them.

Explore the latest research below to see how scientists are currently mapping disease trends and developing strategies to safeguard global health.

📊 epidemiology

Effect of household boiling on ciprofloxacin and enrofloxacin residues in cow milk from Dhaka, Bangladesh: paired HPLC-UV screening and dietary exposure assessment

A study of 120 cow milk samples from Dhaka, Bangladesh, found that while 15 minutes of household boiling significantly reduced ciprofloxacin and enrofloxacin residue levels, it failed to bring the vast majority of contaminated samples below the EU maximum residue limit, leaving dietary exposure risks largely unchanged.

Ahmed, M., Asif, M. A., Rinky, F., Mostafa, M. G., Bhuiyan, M. N. I., Afrin, S., Ahmed, T., Rahman, A.2026-08-21
📊 epidemiology

Quantifying infection-relevant contact patterns among young children in childcare settings in the United States.

This study utilizes nationally representative childcare data to reconstruct daily contact patterns for young children in the United States, revealing that existing models significantly underestimate contacts in this age group and consequently misrepresent the frequency and impact of infectious disease outbreaks like measles.

Loo, S. L., Nande, A., Hill, A. L., Truelove, S.2026-08-21
📊 epidemiology

Identifying adverse experiences in childhood in the Born in Bradford Birth Cohort children

This study utilizing the Born in Bradford Birth Cohort data reveals that adverse childhood experiences are widespread, affecting nearly two-thirds of children by early adolescence, with prevalence varying significantly by ethnicity and maternal material deprivation, thereby highlighting the need for targeted early-years policies to address these disparities.

Lam, N., Wadman, R., Watmuff, A., Gilbody, S.2026-08-21
📊 epidemiology

An ecological study of the effect of white-tailed deer on alpha-gal syndrome in United States counties

This ecological study utilizes citizen science data and a front-door causal model to suggest that increased white-tailed deer abundance is associated with higher numbers of alpha-gal syndrome cases in the United States, though the authors caution that measurement errors and data limitations warrant careful interpretation of these estimates.

Piccininni, M., Cadahia, L., Stensrud, M. J.2026-08-20
📊 epidemiology

Prevalence of Non-alcoholic Fatty Liver Disease (NAFLD) among Children and Adolescents (<18 years) in India: A Systematic Review and Meta-analysis

This systematic review and meta-analysis of 11 studies involving 3,512 Indian children and adolescents reveals a high overall prevalence of non-alcoholic fatty liver disease (35.4%), with a disproportionately higher burden observed in overweight or obese high-risk groups (59.7%) compared to the general population (10.7%).

Abu Bashar, M., Prabhat,, Khan, I. A., Begam, N.2026-08-19
📊 epidemiology

Evaluation of the Leptocheck-WB IgM rapid test for acute leptospirosis among acute undifferentiated fever patients in western Uganda: very low sensitivity against locally circulating Leptospira serogroups

A study in western Uganda found that the Leptocheck-WB IgM rapid test has near-zero sensitivity (1.1–2.2%) for detecting acute leptospirosis caused by locally circulating serogroups, rendering it unsuitable for screening or surveillance in this setting despite its perfect specificity.

Kirabo, A. V., Alinaitwe, L., Ndawula, E. C., Kobba, K., Ogwang, J., Kirungi, M., Ndagire, A., Lamorde, M., Mayito, J. (…)2026-08-19
📊 epidemiology

Development and Validation of Interpretable Machine Learning Models for Early Prediction of Low Birth Weight in Ethiopia: A Secondary Analysis of the Ethiopian Demographic and Health Survey

This study demonstrates that interpretable machine learning models, particularly XGBoost, utilizing early pregnancy and sociodemographic data from the Ethiopian Demographic and Health Survey can accurately predict low birth weight risk to facilitate timely, targeted interventions in resource-limited settings.

Gebiru, A. M., Gebeyehu, S. B., Mihret, S. A., Ferede, K. T., Mamaye, Y.2026-08-19
📊 epidemiology

A Nationally Representative Study of Complementary and Alternative Medicine Therapies in relation to Sleep Duration and Insomnia Symptoms among US Adults

This nationally representative study found that US adults using complementary and alternative medicine therapies had a higher prevalence of short sleep duration and insomnia symptoms compared to non-users, a relationship likely driven by reverse causation where individuals with sleep disturbances seek out these treatments.

Singh, R., Gaston, S. A., Payne, C., Neo, D. T., Bertisch, S. M., Jackson, C. L.2026-08-19
📊 epidemiology

Childhood Bullying as a Cumulative Health Risk: A Dose-Response Analysis of Peer Victimization and Adult Mental and Behavioral Health Outcomes in Saudi Arabia

This national study in Saudi Arabia demonstrates a significant dose-response relationship between the frequency of childhood peer victimization and adverse adult mental and behavioral health outcomes, revealing that frequent bullying—particularly religion-targeted verbal abuse—substantially increases risks for substance use, anxiety, and suicidal ideation, with these effects amplified by socioeconomic disadvantage and partially mitigated by parental supervision.

Bin Hamdan, D. A.2026-08-19