This annual report summarizes numbers and trends of newly identified HIV-antibody seropositivity, from January 1, 2019 through June 30, 2024, among military members of five services under the active and reserve components of the U.S. Armed Forces, in addition to the Army and Air Force National Guard.

This guest editorial presents a policy analysis that suggests HIV PrEP coverage in the Military Health System remains suboptimal, and evaluates several available interventions could result in substantial increases in PrEP coverage that could further reduce new service member HIV infections and increase medical readiness.

This Surveillance Snapshot describes hepatitis A and B virus antibody positivity results from 2023 among enlisted recruits at Joint Base San Antonio-Lackland.

Reportable Medical Events are documented in the Disease Reporting System internet by health care providers and public health officials throughout the Military Health System, with monthly updates reported in each issue of MSMR.

The editors of MSMR are announcing a call for papers to be published in the May 2025 issue of MSMR that will be dedicated to the health of women serving in the military.

This study examines the incidence of hair loss among active component U.S. service women, describes the types of hair loss, and summarizes potential racial and ethnic disparities of hair loss among service women over the last 12 years.

Reportable Medical Events by health care providers and public health officials throughout the Military Health System are updated in each month's issue of MSMR.

This report describes the characteristics of mpox cases identified in U.S. military personnel and other MHS beneficiaries during the outbreak that began in late spring 2022, through spring 2024.

This report describes the trends of vitamin D deficiency among active component service members in the past five years and identifies factors independently associated with a current deficiency diagnosis, with particular emphasis on the occupation category.

This study assesses associations between demographic factors and incidence of acute hip fracture and hip stress fracture, including age, race and ethnicity, branch of service, military occupation, and recruit status, as well as associations between body mass index.

This report establishes that malaria rates among regionally-deployed Australian military personnel remain relatively low following high rates in the early 2000s.

Some military organizations in INDOPACOM give returning soldiers presumptive treatment for filariasis, but with few clinical cases in recent decades, this report reviews the policy’s historical basis.