Epidemiology

An innovative online summer course empowers budding environmentalists nationwide to tackle local public health challenges, fostering informed and engaged community leaders.

Originally launched to track major pandemic outbreaks in the US and around the world, Brown University School of Public Health’s Pandemic Tracker now helps with a wide range of public health efforts. Led by Jennifer Nuzzo, director of the Pandemic Center and professor of epidemiology at SPH, the tracker helps public and policy makers stay on top of disease outbreaks during a time of economic strain and political polarization.

Through a pioneering fellowship with Brown’s Pandemic Center, genomic epidemiologist Edyth Parker is working to prevent man-made biological threats and foster responsible innovation by mapping DNA synthesis practices and helping to shape biosecurity policies across Africa.

Professor of Epidemiology Marianthi Kioumourtzoglou discusses the limitations of and current models for assessing wildfire-smoke exposure and its health impacts.

A special live Commencement & Reunion Weekend episode of our podcast, Humans in Public Health, brings Brown University experts from epidemiology and urban studies for a discussion on cities: How they collect public health problems and the ways they might help us to address those same issues.

For the first time since the COVID vaccines became available in pharmacies in 2021, the average person in the U.S. can’t count on getting a free annual shot against a disease that has been the main or a contributing cause of death for more than 1.2 million people around the country, including nearly 12,000 to date this year. “COVID’s not done with us,” says Jennifer Nuzzo, an epidemiologist at Brown University. “We have to keep using the tools that we have. It’s not like we get to forget about COVID.”

How does exposure to “forever chemicals” impact pregnancy? Is there a connection between firearm ownership and elevated lead levels in children? These are the kinds of studies Brown University carried out through its Center for Children’s Environmental Health in recent years, placing an emphasis on solutions-oriented research, said environmental epidemiologist Joseph Braun, the center’s director.

Biomedical and public health research in the United States now finds itself in an existential moment. The government’s proposed changes, if allowed to take place, will absolutely decimate not just the nation’s but the world’s ability to study disease, therapeutics, and health outcomes.

The number of people who died of drug overdoses in the U.S. dropped dramatically in 2024, a promising sign amid a national fentanyl crisis that has fueled a surge in drug-related deaths in recent years. “This progress is encouraging, but it’s fragile,” said Alexandria Macmadu, an assistant professor of epidemiology at Brown University’s School of Public Health. “We can’t mistake this progress for victory. Sustained investment is essential if we want to build on this momentum instead of backsliding.”

Professor Ronald Aubert's course aims to help students understand the complexities of the insurance and pharmaceutical industries, identifying the factors that result in such high prescription drug prices.

Professor Alex Macmadu, an epidemiologist who has spent her career studying the opioid and overdose crisis, shares insights on Rhode Island’s bold step in opening the first state-approved overdose prevention center in the U.S. and what her research reveals about community attitudes toward harm reduction.

In Rhode Island, the terminations have come in steadily since February, officials at both Brown University and the University of Rhode Island said, and it’s not clear when they will stop. The Trump administration is also seeking to slash overhead costs for research across the board, and has threatened to freeze an unspecified $510 million from Brown, roughly double the Ivy League institution’s annual federal funding.

Five years after the start of the global COVID-19 pandemic, School of Public Health experts look to Washington as they weigh in on where our biosurveillance tools and preparedness systems stand now: What’s changed, what hasn’t and what must be built to make us ready for the next pandemic?

With the United States facing its largest single measles outbreak in 25 years, Health and Human Services Secretary Robert F. Kennedy Jr. will direct federal health agencies to explore potential new treatments for the disease, including vitamins, according to an H.H.S. spokesman. The decision is the latest in a series of actions by the nation’s top health official that experts fear will undermine public confidence in vaccines as an essential public health tool.

Disease trackers say cases are likely not connected, but definitive answers may prove elusive....“Without additional information, no conclusion can be reached: if it is due to chance, or some potential work-related exposure,” said Tongzhang Zheng, an epidemiology professor in the Brown School of Public Health, who is not involved in the Newton-Wellesley investigation.

Research out of Brown University is making its way to the national spotlight. It concerns the overdose prevention center in Providence.

Aggressive deportation tactics have terrorized farmworkers at the center of the nation’s bird flu strategy, public health workers say, including Jennifer Nuzzo, director of the Pandemic Center at Brown University.

There’s a theory of cancer causation that I’ve been thinking about recently called the two-hit hypothesis. It proposes that cancer begins with two mutations: one that can be inherited and one that is influenced by environmental or other factors. Public health seems to be in the midst of experiencing two hits. The result could be deadly.

What are the biggest threats to the health security of the American people? There are some strong candidates. Avian influenza is spreading in birds, cattle, and 50 mammalian species. Measles cases are surging at home and abroad. COVID-19 is still spreading and could mutate into a more deadly strain. Farther afield, Uganda continues to respond to an Ebola outbreak and Mpox has been seen in 127 countries. But perhaps the biggest threat to America’s health could be self-inflicted.

Epidemiologists in the School of Public Health and Warren Alpert Medical School conducted a meta-analysis to assess whether red wine protects against cancer, comparing the cancer risks of red wine vs. white wine.

Per- and polyfluoroalkyl chemicals are everywhere—in our homes, our clothing, the personal care products we use and in our bodies. Postdoctoral researcher Amber Hall explains the dangers PFAS pose, especially to developing humans, and offers suggestions for avoiding them.

The question of whether harm reduction efforts are failing remains complex. To delve deeper into this evolving issue, Newsweek has reached out to medical experts for further insights.

Over the past three decades, routine immunizations have prevented 1.1 million deaths and saved the United States $540 billion, the C.D.C. estimated.

Brown University researchers take a deep dive into the barriers that are disincentivizing health insurers from covering the mindfulness–based health program.

When I began my Ph.D. in an interdisciplinary environmental studies program, students further along in the program warned it was going to be particularly hard for us to get academic jobs. They pointed out that among the brilliant and productive faculty who enthusiastically taught our program, none had in fact received training like ours— they all had Ph.D.s in clearly defined fields.

After Joe Silva graduates from Brown’s School of Public Health, he will begin a two year role as an Epidemic Intelligence Service officer for the U.S. Government.

Brown researchers examined hundreds of thousands of veterans’ health records to determine if exposure to burn pits on military bases correlates with elevated risk for respiratory and cardiac health conditions.

Americans who test positive for COVID-19 no longer need to stay in isolation for five days, U.S. health officials announced Friday. The Centers for Disease Control and Prevention changed its longstanding guidance, saying that people can return to work or regular activities if their symptoms are mild and improving and it’s been a day since they’ve had a fever.

In mid-February, a measles outbreak started at the Manatee Bay Elementary School in Broward County in South Florida. There are now at least nine cases in the county and one additional one in Polk County in Central Florida.

An analysis of health care claims data, conducted in partnership with Blue Cross & Blue Shield of Rhode Island, finds billions in excess health care spending following COVID-19 infection, and has important implications for pandemic preparedness.

Dr. Francesca Beaudoin was the first physician in the nation to serve patients in a mobile drug recovery unit. The van, an innovative public health intervention on wheels, delivers services to individuals suffering from substance use disorder in Rhode Island’s underserved communities.

The CDC says we should isolate for five days after testing positive. Other public health officials disagree. Who is right?

Dr. Ashwin Vasan, Commissioner of the New York City Department of Health and Mental Hygiene, visits Brown to share perspective on public health response in New York — from the Omicron wave to today.

PFAS can be found in just about everything, but there are a few things you can do to reduce your exposure.

Over the coming months, more than 100,000 Americans will likely die, mostly unnecessarily, from respiratory infections. Yes, that is the reality we are now facing this fall and winter—and likely every fall and winter for the foreseeable future. Unless we act.

WBUR reached out to Dr. Ashish Jha, dean of Brown University’s School of Public Health, to understand the coming virus season, and how vaccines could help to reduce the risk of illness.

COVID cases are on the rise and this week the Centers for Disease Control and Prevention has recommended that anyone who is six months or older get the new COVID-19 vaccines. Health reporter Lynn Arditi talked about the new vaccines with Doctor Ashish Jha, former White House COVID advisor and current dean of Brown University’s School of Public Health.

Noise pollution is a physical and mental stressor with real health impacts, Professor Erica Walker tells NPR. "It's going to the emergency room for a panic attack, it's 'I can't sleep,' 'I can't hear my children.' It's all of those things," she says.

Given the late summer wave of COVID infections, you might have questions about how best to protect yourself and others. In The Boston Globe, Professor Jennifer Nuzzo tackles one of the most pressing issues: When should you get your next shot?

Professor Tongzhang Zheng digs deeper into disease etiology.

Professor of epidemiology Erica Walker weighed in for this comprehensive article for the New York Times.