News & Highlights
![Hanny Al-Samkari, MD](https://catalyst.harvard.edu/wp-content/uploads/2022/01/Photo-HAS-White.jpg)
Five Questions with Hanny Al-Samkari
March 7, 2022 | A classical hematologist discusses how our training programs have impacted his career.
Read story![Jehan Alladina, MD,](https://catalyst.harvard.edu/wp-content/uploads/2022/02/Jehan.jpg)
Discovering the Pathways that Lead to Allergic Asthma
February 16, 2022 | An awardee of our KL2 CMeRIT program leads innovative research to help prevent the development of asthma.
Read story![Close-up of various medical pills and capsules](https://catalyst.harvard.edu/wp-content/uploads/2022/01/background-of-different-colorful-medical-pills-and-capsules-top-view-picture-id1317821465.jpg)
Five Questions with Kathryn T. Hall
February 8, 2022 | Our former faculty fellowship awardee discusses integrative medicine and her research into the placebo response.
Read story![Multi colored sound wave background](https://catalyst.harvard.edu/wp-content/uploads/2022/02/SongPracticePatterns850.jpg)
Cause for Concern
February 2, 2022 | Study finds significant variations in care between physicians.
Read story![1930s Home Owners Loan Corporation (HOLC) map of Boston showing redlining](https://catalyst.harvard.edu/wp-content/uploads/2022/02/holc-scan_boston_large_1200x800.jpg)
Interactive Web Series Explores Environmental Racism
February 2, 2022 | New series of web resources from Harvard T.H. Chan School of Public Health tell a multifaceted story about disparities in environmental exposures.
Read story![Man in wheelchair playing with a dog.](https://catalyst.harvard.edu/wp-content/uploads/2022/02/a5956687-ada9-4c10-ab95-1b00ad380ddb.jpg)
The Rising Tide of Dementia and the Need for Nondrug Therapies
February 1, 2022 | Researchers work to combat Alzheimer's disease.
Read story![Washington University in St. Louis student Julian McCall receives a dose of Pfizer’s mRNA-based COVID-19 vaccine.](https://catalyst.harvard.edu/wp-content/uploads/2022/02/20210416_Vaccine_0002_forweb.jpg)
What Makes an mRNA Vaccine so Effective Against Severe COVID-19?
December 23, 2021 | Shots trigger exceptional antibody response by activating key helper immune cells.
Read story![Andrew T. Chan](https://catalyst.harvard.edu/wp-content/uploads/2021/11/20210707_jsa_gastro_090_web_460-1.jpg)
Five Questions with Andrew T. Chan
November 30, 2021 | An epidemiologist discusses his research on the role of diet and inflammation in predicting COVID-19 outcomes.
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