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Augusto A. Litonjua, M.D., M.P.H.

Contact Information

Phone Numbers

Office: (585) 275-2464

Fax: (585) 275-8706

URMFGA member of the University of Rochester Medical Faculty Group

groupAn Accountable Health Partner

assignmentNot Accepting New Patients

Faculty Appointments

Patient Care Setting



Dr. Litonjua is interested in the management of asthma patients and how to better prevent asthma exacerbations. As part of this, the use of biologics and specific nutrients hold promise in the treatment of these patients.


Dr. Litonjua's research primarily deals with investigating factors that both increase and decrease the risk of developing asthma, wheezing, and allergic disorders in childhood. As part of this, he has investigated a broad range of prenatal and early life exposures including maternal diet, exposure to allergens, exposure to early life environment (e.g. pets, daycare attendance, air pollution, etc). He co-led a clinical trial of vitamin D supplementation in pregnancy to prevent asthma in the offspring.

He has an interest in identifying genetic and epigenetic marks that affect asthma development and is also working on the interaction between these genetic and epigenetic factors and environmental exposures on the development of asthma and allergies.

Dr. Litonjua has begun to examine the role of the gut microbiome and the environmental microbiome in early life on the development of asthma and allergies in children.



  • Critical Care Medicine - American Board of Internal Medicine
  • Internal Medicine
  • Pulmonary Disease - American Board of Internal Medicine


MD | University of the Philippines College of Medicine

MPH | Harvard School of Public Health

Post-doctoral Training & Residency

7/1/1995 - 6/30/1997
Fellowship in Epidemiology at Brigham and Women's Hospital

8/1/1992 - 6/30/1995
Fellowship in Pulmonary/Critical Care at West Virginia University School of Medicine

7/1/1989 - 6/30/1992
Residency in Internal Medicine at Brooklyn Hospital Center

7/1/1988 - 6/30/1989
Internship in Internal Medicine at Brooklyn Hospital Center

5/1/1986 - 4/30/1987
Internship in at University of the Philippines - Philippine General Hospital

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2018 - Present
American Thoracic Society Fellow
Sponsor: American Thoracic Society

Elected to membership of the American Pediatric Society

Outstanding Researcher – University of the Philippines Medical Alumni Society, Annual Homecoming,
Location: Makati, Philippines

Outstanding Achievement in Research – University of the Philippines Medical Alumni Society in America, Annual Grand Convention,
Location: Washinton, DC

1999 - Present
Fellow of the American College of Chest Physicians
Sponsor: American College of Chest Physicians

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Journal Articles

Chu SH, Huang M, Kelly RS, Kachroo P, Litonjua AA, Weiss ST, Lasky-Su J. "Circulating levels of maternal vitamin D and risk of ADHD in offspring: results from the Vitamin D Antenatal Asthma Reduction Trial." International journal of epidemiology.. 2021 Sep 17; Epub 2021 Sep 17.

Krol KA, Litonjua AA. "Beyond Obesity: The complex relationship between early growth trajectories and later lung function." The Journal of allergy and clinical immunology.. 2021 Jul 23; Epub 2021 Jul 23.

Chen YS, Mirzakhani H, Lu M, Zeiger RS, O'Connor GT, Sandel MT, Bacharier LB, Beigelman A, Carey VJ, Harshfield BJ, Laranjo N, Litonjua AA, Weiss ST, Lee-Sarwar KA. "The association of prenatal vitamin D sufficiency with aeroallergen sensitization and allergic rhinitis in early childhood." The journal of allergy and clinical immunology. In practice.. 2021 Jun 21; Epub 2021 Jun 21.

Books & Chapters

Chapter Title: Asthma: Epidemiology
Book Title: Fishman's Pulmonary Diseases and Disorders
Author List: Litonjua AA, Apter A, Weiss ST
Edited By: Grippi M, Elias J, Fishman J, Kotloff R, Pack A, Senior R
Published By: McGraw-Hill 2015 in New York

Chapter Title: The role of vitamin D in the development, exacerbation, and severity of asthma and allergic diseases
Book Title: Vitamin D and the Lung: Mechanisms and Disease Associations
Author List: Litonjua AA
Edited By: Litonjua AA
Published By: Humana Press 2012 in New York

Book Title: Vitamin D and the Lung: Mechanisms and Disease Associations. Humana Press: New York, 2012.
Author List: Litonjua AA (Editor)
Published By: Humana Press 2012 in New York