Pathogen Transmission
Learning Objectives
Diarrheal Illness
At the end of this module, the learner will be able to:
- Discuss the role the environment plays in the pathogen transmission.
- List the five moments to perform hand hygiene.
- Discuss how symptom-based precautions can prevent the spread of infections.
- Discuss Contact Isolation and when it should be employed.
- Discuss ways healthcare professionals can transmit pathogens.
Respiratory Viral Illness
At the end of this module, the learner will be able to:
- Discuss the modes of transmission and the period of infectivity for common respiratory viruses, including influenza.
- Identify appropriate transmission-based precautions for common respiratory viruses and accurately apply the use of personal protective equipment for a given scenario.
- Recognize that annual influenza vaccination is recommended strategy for prevention of seasonal influenza and discuss common myths associated with influenza vaccination.
Airborne Infection
At the end of this module, the learner will be able to:
- Identify pathogens that require airborne isolation precautions.
- Describe the rationale and the components of airborne isolation, specifically the airborne infection isolation room and airborne respiratory protection.
- Discuss the particular strategies recommended to prevent the spread of tuberculosis and varicella-zoster virus in healthcare settings.
Diarrheal Illness
Original Author:
Matthew Linam, MD, MS
Associate Professor, Pediatric Infectious Diseases
Emory University School of Medicine and Children's Healthcare of Atlanta
No relevant financial disclosures
Associate Professor, Pediatric Infectious Diseases
Emory University School of Medicine and Children's Healthcare of Atlanta
No relevant financial disclosures
Respiratory Viral Illness
Original Author:
Kerri Thom, MD
Associate Professor of Medicine
University of Maryland School of Medicine
No relevant financial disclosures
Associate Professor of Medicine
University of Maryland School of Medicine
No relevant financial disclosures
Revising Authors (2019):
Jennifer Hanrahan, DO, MSc
Associate Professor
MetroHealth Medical Center
No relevant financial disclosures
Associate Professor
MetroHealth Medical Center
No relevant financial disclosures
Emily Martin, PhD
Assistant Professor, Epidemiology
University of Michigan School of Public Health
No relevant financial disclosures
Assistant Professor, Epidemiology
University of Michigan School of Public Health
No relevant financial disclosures
Revising Authors (2023):
Luci Perri, MSN, MPH, CIC, FAPIC
Infection Prevention Consultant
Infection Control Results
No relevant financial disclosures
No relevant financial disclosures
Stephanie Smith, MD
Hospital Epidemiologist/Infectious Diseases
University of Alberta
No relevant financial disclosures
No relevant financial disclosures
Terri Stillwell, MD, MPH
Clinical Assistant Professor
University of Michigan/Michigan Medicine
No relevant financial disclosures
No relevant financial disclosures
Matthew Linam, MD, MS
Associate Professor
Emory University
No relevant financial disclosures
No relevant financial disclosures
Revising Authors (2026):
Vani George, MD
Assistant Professor
Mount Sinai Health System
No relevant financial disclosures
Abby Sung, MD
Assistant Professor
Washington University School of Medicine
No relevant financial disclosures
Airborne Infection
Original Author:
Jonathan Crews, MD, MS
Assistant Professor
Pediatric Infectious Diseases
Baylor College of Medicine
No relevant financial disclosures
Assistant Professor
Pediatric Infectious Diseases
Baylor College of Medicine
No relevant financial disclosures
Revising Authors (2023):
Elise Martin, MD, MS
Medical Director of Infection Prevention & Hospital Epidemiology
VA Pittsburgh Healthcare System
No relevant financial disclosures
No relevant financial disclosures
Luci Perri, MSN, MPH, CIC, FAPIC
Infection Prevention Consultant
Infection Control Results
No relevant financial disclosures
No relevant financial disclosures
Matthew Linam, MD, MS
Associate Professor
Emory University
No relevant financial disclosures
No relevant financial disclosures
Revising Authors (2026):
Rebecca Choudhury, MD
Infectious Disease Physician
Mount Sinai Queens
No relevant financial disclosures
Supriya Narasimhan, MD
Faculty, Infectious Disease
Santa Clara Valley Medical Center
No relevant financial disclosures

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