Protecting Health and Saving Lives—Millions at a Time
The Bloomberg School works to keep millions around the world safe from illness and injury by pioneering new research, deploying knowledge in the field, and educating tomorrow’s public health leaders.
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Headlines
Bird Flu Is Raising Red Flags Among Health Officials
Last week the Louisiana Department of Health announced the first U.S. death from H5N1. Samples taken from the individual suggest that the virus has begun to adapt to infect humans better.
Biden's Public Health Wins
Biden made his mark on public health with policies designed to protect Americans from hazardous chemicals, reduce drug prices, expand insurance coverage, and more.
Johns Hopkins Makes It Easy and Free to Know Your Hearing Numbers With New Hearing Test App
App to support hearing awareness available in English and Spanish on iOS and Android smartphones in 28 countries, including U.S.; to expand in Chinese, French, German, and Japanese
Pulse Oximeters Infrequently Tested by Manufacturers on Diverse Sets of Subjects
Analysis of FDA clearance documents for pulse oximeters suggests low compliance with 2013 FDA non-mandatory recommendation
Ultraprocessed Foods Account for More than Half of Calories Consumed at Home
U.S. home consumption of ultraprocessed foods increasing at faster pace than consumption outside the home
Who Controls U.S. Public Health—the Feds or the States?
The U.S. government’s approach to public health seems certain to change when the second Trump administration begins on January 20. But what powers do states have to determine and take action on their own public health priorities?
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Our Academic Program Offerings
Our programs welcome those from within and outside the traditional boundaries of public health. Whether you're a future college graduate, a midcareer public health leader, or someone looking to make a career change, we have a program for you.
Master of Public Health (MPH)
The Master of Public Health (MPH) is our most flexible degree. With 12 concentrations to choose from, students can tailor their degree to their unique goals while completing classes at their own pace on campus, fully online, or a mix of the two.
We are accepting applications for the online/part-time format starting in November 2025 (in Barcelona) or January 2026.
Master of Science in Public Health (MSPH)
The Master of Science in Public Health (MSPH) is a professional degree alternative to the Master of Public Health (MPH) degree for students who want more focused skills in a specific field of public health or who lack two years of health-related work experience to begin or advance a career as a public health professional. MSPH programs generally require one academic year of coursework, followed by a field placement. The field placement duration and location vary by department/concentration.
Our Planet, Our Health
The new special issue of Hopkins Bloomberg Public Health magazine explores many of the ways humans have transformed Earth's natural systems to the detriment of human health, and highlights research aimed at repairing the harm. The Earth crisis is urgent—public health and planetary health have tools to meet the challenge.
Why Choose the Johns Hopkins Bloomberg School of Public Health?
#1
Ranked by U.S. News & World Report since 1994
1st
and Largest School of Public Health
1,800+
Courses Offered
80+
Research Centers and Institutes
28K+
Alumni Living in over 160 Countries
90+
Degree Programs
45
Certificate Programs
3:1
Student-to-Primary-Faculty Ratio
Meet Our Faculty
Our faculty are world-renowned experts, and trusted advisers to our students, public health leaders, and the public.
Marlene "Joannie" Bewa, PhD, MD is a physician and scientist with expertise in reproductive, maternal health, contraception, digital health, m-health, telehealth in the U.S, Africa and Asia.
Giehae Choi, PhD, MPH, applies environmental epidemiology to characterize exposures during vulnerable life stages and their health impacts, with a focus on chemicals exposure and children’s health.
Harry Barbee, PhD ’20, is an interdisciplinary social scientist who aims to identify, understand, and improve health and aging outcomes among lesbian, gay, bisexual, transgender, and queer populations.
Victoria M. O’Keefe, PhD, MS, works to achieve strengths-based and culturally informed suicide prevention, mental health promotion, and wellness among Indigenous communities.
Join Us in Baltimore
Pursue a degree at the #1 school of public health in one of America's best cities. With 50+ museums, a bustling restaurant scene, gorgeous parks, and more, Baltimore is a great place to study and live.
Support Our Work
Our work is made possible in part by contributions from Bloomberg School donors.