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.

Prevalence and correlates of intimate partner violence among PrEP-eligible men and women in Coastal Kenya

This study of PrEP-eligible individuals in coastal Kenya reveals a substantial prevalence of intimate partner violence, particularly among women and those involved in sex work or parenthood, highlighting the critical need to integrate IPV risk assessment into HIV prevention programs.

Bhanushali, T., Wang, L., Ogadah, F., Wahome, E., Agutu, C., van der Elst, E. M., Sanders, E. J., Graham, S. M.2026-03-31📊 epidemiology

Characterizing Oseltamivir Use among Community-Dwelling Patients Diagnosed with Influenza Virus Infection, 2023-2025

This study of U.S. outpatient influenza cases from 2023–2025 reveals that oseltamivir initiation rates were suboptimal even among high-risk individuals, with treatment completion being particularly low among young children and overall only reaching 42% of those who started the medication.

McNair, E. A., Kwon, J. H., Grijalva, C. G., McLaren, S. H., Biddle, J. E., Dean, S., White, E. B., Fritz, S. A., Presti, R. M., O'Neil, C. A., Sano, E., Vargas, C., Schmitz, J. E., Zhu, Y., Scott, T. (…)2026-03-30📊 epidemiology

A formula for the basic reproduction number of an infectious disease in a heterogeneous population with structured mixing

This paper introduces a generalized mathematical model that combines demographic contact matrices and individual contact variability to derive a more accurate formula for the basic reproduction number, which, when applied to Belgian COVID-19 contact data, yields higher estimates and reveals larger fluctuations in transmission potential compared to existing approaches.

Colman, E., Chatzilena, A., Prasse, B., Danon, L., Brooks Pollock, E.2026-03-30📊 epidemiology

Epidemiological, Clinical, and Diagnostic Characteristics of a Large-Scale Upsurge of Dengue in the Rohingya Refugee Camps and Host Communities in Coxs Bazar, Bangladesh, 2021 to 2024: A Retrospective Study

This retrospective study of 35,581 RDT-confirmed dengue cases in Coxs Bazar (2021–2024) reveals a large-scale, sustained upsurge predominantly affecting Rohingya refugees, characterized by seasonal peaks, high pediatric burden, and specific predictors of severe disease, underscoring the urgent need to shift from episodic outbreak responses to integrated, long-term preparedness strategies in humanitarian settings.

Halder, C. E., Hasan, M. A., Soma, E., Charles Okello, J., Rahman, M. M., Das, P. P., Prue, U. M., Barasa, D. W., Md, A., Hosen, M. S., Shagar, S. H., CHONG, E. Y. C., Paul, D., Mowla, S. M. N., Hoque (…)2026-03-30📊 epidemiology

Epidemiology and Characteristics of MPXV Clade I cases in the WHO European Region, 2024-2025

This study characterizes 82 MPXV clade I cases in the WHO European Region from August 2024 to November 2025, revealing a shift from imported infections to emerging autochthonous transmission among men who have sex with men, which underscores the need for intensified surveillance to prevent sustained spread.

Karagiannis, I., Pires, J., Akhmetinyaz, P., le Polain de Waroux, O., Hoorelbeke, B., Gagniere, B., Jansen, K., Tsiara, C., Igoe, D., Campitiello, M. R., van Ewijk, C., Verissimo, V. C., Santos Larreg (…)2026-03-28📊 epidemiology

Effectiveness of single-dose use of oral cholera vaccine towards reducing cholera incidence and severity during the 2022-2023 in Malawi; A cross-sectional study

This cross-sectional study of the 2022–2023 cholera outbreak in Malawi demonstrates that a single-dose oral cholera vaccination campaign was highly effective, reducing infection risk by 98%, lowering the odds of severe dehydration by 50%, and significantly decreasing the case fatality rate from 2.80% among unvaccinated individuals to 1.20% among vaccinated individuals.

Ngwira, S., Thawani, A., Kamfozi, V., Kambalame, D., Mungwira, R., Dimba, F., Chisema, M., Chapotera, G., Ulaya, E., Ndemera, I., Wu, J., Chimwanza, W., Mwale, A., Kagoli, M., Phiri, V. S.2026-03-27📊 epidemiology

Monoclonal antibody dispensing during and around pregnancy: a descriptive analysis using electronic health records in Italy

A descriptive analysis of Italian electronic health records from 2012 to 2024 reveals a dramatic increase in monoclonal antibody dispensing for women of reproductive age and a corresponding rise in continued use during pregnancy, suggesting a shift in prescribing practices despite a significant proportion of women still discontinuing treatment upon conception.

Aiton, E., Nazzari, V., Cornish, R. P., Faber, B. G., Burden, C., Birchenall, K., Borges, M. C., Lawlor, D. A.2026-03-27📊 epidemiology