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Microbiome and Role in Disease and Health




Dr. Yazan Samih Said

Consultant, Allergy Immunology and Pediatric Pulmonology

King Fahad Specialist Hospital Dammam


Date: Monday, 13 March 2023

Time:11:00 AM

Location: Bldg. 6/125




The microbiome consists of microbes that are both helpful and potentially harmful. Most are symbiotic (where both the human body and microbiota benefit) and some, in smaller numbers, are pathogenic (promoting disease). In a healthy body, pathogenic and symbiotic microbiota coexist without problems.

We know the microbiome is important for maintaining human health, and when things go wrong it can contribute to disease. In order to understand how microbes influence human disease, we first need to understand the microbial make up of a healthy person—what types of microbes are present, and what are they doing? Where can we find them, both in natural foods or in the market.




After completing his school education at La Salle College (Les Freres) in Amman, Dr. Yazan received his medical education at University of Jordan/Amman (1985-1991). He moved to the USA for specialty training, where he did pediatric residency at University of New York (SUNY)- Brooklyn, and obtained his American Board of Pediatrics in 1996, then he did subspecialty fellowship training in Allergy/Clinical Immunology (conjoint adults and pediatrics) at Thomas Jefferson University Hospital in Philadelphia, and obtained his American Boards in Allergy/Immunology in 1999. He proceeded with subspecialty fellowship training in pediatric pulmonology at University of California/Irvine and Miller Children’s Hospital in Long Beach, California. He established and headed the Advanced Pediatric Pulmonary Center in Spring Hill, Florida. He also worked as a pediatrician in Prince Edward Island in Canada. He currently holds the section head of Pediatric Pulmonary/Allergy Immunology section at King Fahad Specialist Hospital in Dammam, Saudi Arabia. He is on the International Advisory Board of International Congress Pediatric Pulmonology (CIPP) and founding member of the Middle East Cystic Fibrosis Association (MECFA). He was on the executive boards of Saudi Pediatric Pulmonary Association (SPPA) and Saudi Allergy, Asthma and Immunology Society (SAAIS). He is a member of multiple international and local scientific associations and societies. He organized many local, regional and international specialized conferences and is a frequent guest speaker in many local and international scientific meetings. His areas of expertise include: cystic fibrosis, chronic urticaria, severe asthma, primary immunodeficiency and immunotherapy.

All faculty, researchers and students are invited to attend.


13 Mar 2023


11:00 AM to 12:00 PM