Related Experiment Video
Updated: Mar 14, 2026

In Vivo Assessment of Alveolar Macrophage Efferocytosis Following Ozone Exposure
Published on: October 22, 2019
Evaluation and Management of Occupational Exposures and Postexposure Prophylaxis
David J Weber1, Andy Gottlieb2, Erica S Shenoy3
1Department of Medicine and Pediatrics, UNC Medical Center, University of North Carolina, Chapel Hill, NC, USA; Department of Epidemiology, UNC Medical Center, University of North Carolina, Chapel Hill, NC, USA; Department of Infection Prevention, UNC Medical Center, University of North Carolina, Chapel Hill, NC, USA.
Health care personnel face diverse infectious agent exposure risks, including blood-borne pathogens from sharps, direct contact, airborne/droplet transmission during patient care, and environmental contamination.
Area of Science:
- Occupational Health
- Infectious Disease Epidemiology
- Public Health
Background:
- Health care personnel (HCP) are susceptible to various infectious agents due to their professional duties.
- Exposure routes include percutaneous injuries, direct skin contact, droplet/airborne transmission, and indirect environmental contact.
- Specific pathogens pose risks such as HIV, HBV, HCV, syphilis, pertussis, measles, meningococcus, tuberculosis, and norovirus.
Purpose of the Study:
- To outline the spectrum of infectious agent exposure risks for health care personnel.
- To categorize transmission routes relevant to health care settings.
- To highlight key pathogens associated with occupational exposure.
Main Methods:
- Review of occupational exposure risks in health care settings.
- Categorization of transmission pathways (percutaneous, direct contact, droplet/airborne, indirect).
- Identification of common and significant infectious agents linked to these exposures.
Main Results:
- Percutaneous exposure via sharps poses risks of blood-borne pathogens (HIV, HBV, HCV).
- Direct skin contact can transmit agents like syphilis.
- Droplet and airborne routes facilitate transmission of pertussis, measles, meningococcus, and tuberculosis.
- Indirect contact with contaminated environments is a significant route for pathogens like norovirus.
Conclusions:
- HCP face multifaceted infectious risks requiring comprehensive prevention strategies.
- Understanding transmission routes is crucial for mitigating occupational exposure.
- A range of pathogens necessitates vigilance and adherence to infection control protocols.
Related Concept Videos
Transmission-based Precautions II: Airborne and Protective Environment
Airborne precautions:
Use airborne precautions when treating patients known or suspected to have diseases that spread through the air—for example, tuberculosis or measles. These organisms are present in smaller droplets expelled by an infected person and...
Chronic Obstructive Pulmonary Disease-V: Management
Smoking Cessation
Standard Precaution
Hand hygiene is the most crucial means to prevent the transmission of disease. Employers are legally required to provide their workers with personal protective equipment (PPE) to minimize exposure or contact with...
Chronic Obstructive Pulmonary Disease-V: Nursing Management
Assessment
Personal Protective Equipment
Pharmacovigilance
This process, termed pharmacovigilance, aims to detect, evaluate, and minimize harmful effects related to medication use. The data collection for pharmacovigilance depends on spontaneous reporting systems, where healthcare professionals or patients voluntarily report suspected ADRs.
In some cases, there...

