Airborne transmission of measles in a physician's office

JAMA
|March 15, 1985
PubMed

Insights

Measles can spread through the air long after an infected person leaves a room. This airborne transmission highlights the need for better ventilation and isolation protocols in healthcare settings to prevent outbreaks.

Area of Science:

  • Epidemiology
  • Infectious Diseases
  • Public Health

Background:

  • Measles outbreaks can occur in healthcare settings.
  • Airborne transmission of infectious agents is a significant concern.
  • Previous understanding of measles transmission dynamics may be incomplete.

Purpose of the Study:

  • To investigate an unusual measles outbreak in a pediatrician's office.
  • To estimate the airborne infectious potential of a measles case.
  • To assess factors influencing measles transmission in a clinical environment.

Main Methods:

  • Analysis of a measles outbreak in a pediatrician's office.
  • Application of an airborne transmission model.
  • Estimation of infectious quanta production per minute.

Main Results:

  • Three measles cases occurred 60-75 minutes after the index patient's departure.
  • The index patient was estimated to produce 144 quanta per minute.
  • Coughing, air recirculation, and low humidity may have facilitated transmission.

Conclusions:

  • Airborne measles transmission can occur over extended periods post-exposure.
  • Healthcare facilities must consider enhanced ventilation and isolation for measles control.
  • Current measles control strategies may need re-evaluation in light of airborne transmission potential.

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