This annual report summarizes the epidemiological patterns of malarial infections among members of the U.S. Armed Forces from 2016 through 2025.

This study combined two sources of medical data to classify nicotine and tobacco use among U.S. active component service members as exposures delineated by recent use or history of any use.

This report updates prior summaries of the numbers, rates, trends, and causes of deaths among service members from all components of the U.S. Armed Forces from 2010 through 2020.

Since 2004, MSMR has published annual updates on the incidence of cold weather injuries affecting U.S. Armed Forces members for the five most recent cold seasons. This 2025 report discusses the occurrence of frostbite, immersion hand and foot injuries, hypothermia, as well as “other specified and unspecified effects of reduced temperature.”

This report examines trends in the prevalence of obesity over the past decade among U.S. active component service members and civilians, ages 17-62 years, overall and by sex, comparing age-standardized distributions of body mass index.

This annual update summarizes incidence rates and trends of the most frequent sexually transmitted infections among U.S. active component service members: chlamydia, gonorrhea, syphilis, human papilloma virus (HPV), and genital herpes simplex virus (HSV).

This study employed multiple forecasting methods in an effort to predict future Lyme disease and tick bites among U.S. Military Health System beneficiaries, with comparisons to actual outpatient encounter data.

This report describes the incidence of gonorrhea and chlamydia in male Air Force basic trainees and compares follow up testing and clinical outcomes with female basic trainees.

This report provides updated data and analysis on measles, mumps, rubella and varicella cases from 2019 through 2024, describing trends among U.S. Military Health System beneficiaries and stratifying cases by immunization status.

This study developed predictive models to forecast future long COVID diagnoses and compared each model prediction to observed diagnoses.

This report describes associations between prior body mass index and prior physical fitness performance with COVID-19 hospitalization, adjusting for age, race and ethnicity, vaccination, and comorbidities.

This report provides cumulative seasonal influenza hospitalization rates of service members, stratified by sex, age group, race and ethnicity, branch of service, recruit site, and location, both in the U.S. and overseas.

This report focuses on service member health care encounters during deployment to two theaters of operations, U.S. Central Command (CENTCOM) and U.S. Africa Command (AFRICOM), where the largest concentrations of service members are deployed without access to fixed medical facilities.

This study examines the trend in annual incidence of hypertension and hypertensive disease, as well as annual percentages of recorded high blood pressure measurements, among U.S. service members between 2018 and 2023, utilizing data from the Defense Medical Surveillance System.

This study characterizes all medically diagnosed bites and stings in U.S. active component service members from snakes, venomous fish, other venomous marine animals, arthropods, and insects identified through medical data from the Defense Medical Surveillance System.