Celebrating Dr. Barry Bloom’s Extraordinary Legacy
In 1998, despite never having skied before, Dr. Barry Bloom climbed a ski mountain in Jura, Switzerland, because it was the only way to meet with the World Health Organization’s Deputy Director-General. Having just accepted the role of dean of Harvard T.H. Chan School of Public Health, Dr. Bloom believed the conversation was too important to miss.
He made the meeting. He also fell and ruptured several discs in his back.
His laboratory established groundbreaking research in the immunology field, like the discovery of cytokines.
He chaired the Vaccine Advisory Committee of UNAIDS and participated in numerous scientific advisory boards and prestigious public health organizations.
He succeeded in meeting with and listening to the General. He also fell and ruptured several discs. But he healed—eventually—and dove into his new role at Harvard Chan School.
Themes of tenacity, advocacy, love, and wisdom recur in the stories and recollections shared by Dr. Bloom’s loved ones and colleagues.
Dr. Barry Bloom was a renowned immunologist and beloved husband, father, and grandpa.
A global health pioneer, Dr. Bloom applied knowledge and cutting-edge basic science methods to alleviate the burden of diseases in marginalized populations around the world, focusing his research on infectious diseases such as tuberculosis, leprosy, malaria, and COVID-19.
Dr. Bloom welcomed and loved the world like his family, striving to improve public health for everyone.
Chair of the Department of Immunology and Infectious Diseases Dr. Sarah Fortune said, “Barry was a great inspiration, colleague, and friend. He was a fierce advocate for science in the service of the most vulnerable people in the world. He also trained generations of researchers. As a mentor, he was exceptionally generous with his time and wisdom and a role model for the importance of teaching, a legacy that we will seek to carry on.”

Dr. Bloom’s lab and collaborations defined fundamental research in immune responses and molecular mechanisms for protection against tuberculosis in animal models and human macrophages. Furthermore, his collaborations created the development of new vaccine candidates against tuberculosis.
With the valuable lessons from his ski excursion, he held the position of dean of Harvard Chan School from 1999-2010, during which he supported launching the Public Health Foundation of India and led the university’s work to treat HIV in Nigeria and Botswana.
Dr. Bloom was honored with the first Bristol-Myers Squibb Award for Distinguished Research in Infectious Diseases, the Robert Koch Gold Medal for outstanding lifetime achievements and research in infectious diseases, and he shared the Novartis Award in Immunology.
In addition to joining the scientific advisory boards for the Rockefeller Foundation, the Wellcome Trust, and the Howard Hughes Medical Institute, where he served as an investigator as well, Dr. Bloom was elected to membership to the following organizations: National Academy of Sciences, National Academy of Medicine, American Academy of Arts and Sciences, and American Philosophical Society.
He also proudly upheld the title, “Grandpa.”
As we remember Barry Bloom, we honor his passion for life, his loved ones, and his commitment to advancing public health for all.
Dr. Bloom’s dedication to his vocation led him to advance public health for folks he’d never met—either those living across the world or for future generations to come—and he left a lasting impact on the people he did know, whether it was only briefly or for a lifetime.
On the online Memorial Board for Dr. Bloom, the community can read posts from family and colleagues, including some of the stories mentioned in this piece, and write their own tributes to Dr. Bloom.
The memorial board provides a glimpse into Dr. Barry Bloom’s personal life, like him whisking his daughter Inae around on piggyback rides when she was little, to her obvious delight (videos of which can also be viewed via Hi8 silent movie clips uploaded to the board by Dr. Bloom’s brother-in-law, Eric).

IID faculty members Dr. Yonatan Grad and Dr. Marc Lipsitch, who worked closely with Dr. Bloom, published a heartfelt piece about him in STAT, linked below:
The link to Dean Andrea Baccarelli’s kind words about Dr. Bloom:
In celebrating Dr. Bloom’s life, we celebrate his positive impact across the world.