Faculty profile

Lionel Mandell

Back to faculty
Professor EmeritusMedicineMcMaster University

Research

Doctor Mandell returned to Canada in 1978 after completing his training in internal medicine and infectious diseases at Harvard. He established and headed the infectious disease service and training program in infectious diseases at McMaster and mentored numerous students and trainees over the years. He was made an examiner of the Royal College Fellowship Exams in Infectious Diseases and Microbiology. He was president of the Canadian Infectious Diseases Society from 1988 to 1989, then president of the Canadian Foundation for Infectious Diseases and the Foundation for Research and Development in Infectious Diseases from 1994 to 2000. During his career, he spearheaded several major international clinical trials involving serious infections, particularly pneumonia, and he is still active on data monitoring boards for new drug development in the treatment of pneumonia. He sits on the editorial boards of 14 journals and has published 208 papers, including in the New England Journal of Medicine and 51 book chapters. This includes being a senior author of the “Pneumonia” chapter in Harrison's Textbook of Medicine. He has co-edited 2 textbooks, one on general infectious diseases and one on respiratory infections. He has been invited to 62 countries as a visiting professor, consultant and advisor to universities, hospitals, medical societies, governments and research groups and has made key contributions to the management and treatment of pneumonia and is considered an international leader in this field. One of his major achievements has been as co-chair of the joint Infectious Diseases Society of America/American Thoracic Society Guidelines on Community Acquired Pneumonia. He also co-chaired a comparable committee in Canada. He has received numerous awards including the Zinner Lecture at Harvard, an honourary fellowship in the Royal College of Physicians London, the Who's Who of Medical Sciences Award, the Visiting Health Expert Award from the government of Singapore, the Distinguished Service Award from the Canadian Infectious Disease Society, the Faculty of Medicine Award for Academic Achievement from McMaster University, the Best Doctors in Canada Award and most recently the Lifetime Achievement Award from the Association of Medical Microbiology and Infectious Diseases Canada.

Research areas, by share of publications

Research areas are derived from OpenAlex topics of their publications.

From the 150 most recent of 244 publications.

01

Pneumonia

Mandell L

First author
02

Bacterial infections in the compromised host.

Mandell LA

First author
03

Novel Antibiotics

Mandell L

First author
04

Clinical Aminoglycoside Ototoxicity

Mandell L

First author
05

Lower Respiratory Tract Infections: When are Antibiotics Mandatory?

Mandell L

First author
06

Lower Respiratory Infections. Bronchitis and Pneumonia.

Mandell L

First author
07

Fusidic acid

Mandell L

First author
08

Respiratory Infections

Mandell L, Woodhead M, Ewig S, Torres A

21 citationsFirst author
09

Pneumonia

Mandell L

2025First author
10

Pneumonia

Mandell L, Neiderman M

2022First author
Write to this professor

A short, specific email works best. This draft uses one of their recent papers; replace the parts in brackets with your own details before sending.

Applying for
Subject: Prospective PhD student: Pneumonia and Respiratory Infections Dear Professor Mandell, My name is [your name], and I am a [your current degree or role] at [your institution]. I am applying for a PhD position starting in [term and year]. I read your paper "Pneumonia", and it connects closely to my own work on [your research topic]. [One or two sentences on what you did and what you learned.] Are you accepting new PhD students for [term and year]? I have attached my CV and transcripts, and I would be glad to talk at a time that suits you. Thank you for your time. Kind regards, [your name]
Open in email
Something wrong or missing on this profile? Suggest a correction