Microbiome and Role in Disease and Health
Dr. Yazan Samih Said
Consultant, Allergy Immunology
and Pediatric Pulmonology
King Fahad Specialist Hospital
Date: Monday, 13 March 2023
Location: Bldg. 6/125
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.
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.
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