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Measles spread in medical settings: an important focus of disease transmission?
Abstract:
During the period September 1981 to August 1985, we investigated every reported case of measles in Oklahoma to confirm the diagnosis, to determine the source, and to identify contacts to prevent spread of the disease. During this time, 33 serologically and/or epidemiologically confirmed cases were investigated. Nine (27%) persons acquired measles in a medical office or clinic waiting area. Eight of these recalled direct face-to-face contact with a source. An additional six (18%) cases were associated with exposure to these medically acquired cases, for a total of 45% that were the direct or indirect result of exposures in medical waiting rooms. The medical waiting room is a location where a reservoir of susceptible individuals may congregate, allowing for potential exposures to measles and other infectious diseases. Because many persons in these settings are too young to have received routine measles vaccination, other measures to decrease exposures in this setting may be necessary to achieve the goal of measles elimination in the United States.
Insights
Medical waiting rooms are a significant source of measles transmission, with 45% of cases linked to these areas. This highlights the need for interventions to prevent measles spread in healthcare settings.
Area of Science:
- Epidemiology
- Infectious Disease Control
- Public Health
Background:
- Measles transmission poses a significant public health challenge.
- Healthcare settings can act as sites for disease transmission.
- Preventing measles spread is crucial for elimination goals.
Purpose of the Study:
- To investigate the sources and transmission patterns of measles cases in Oklahoma.
- To identify specific locations contributing to measles spread.
- To inform strategies for measles prevention in medical environments.
Main Methods:
- Conducted a comprehensive investigation of all reported measles cases in Oklahoma between September 1981 and August 1985.
- Utilized serological and epidemiological data for case confirmation.
- Traced contacts and identified exposure sources for confirmed cases.
Main Results:
- Investigated 33 confirmed measles cases.
- Nine cases (27%) were acquired in medical office or clinic waiting areas.
- An additional six cases (18%) were linked to exposures from these medically acquired cases, totaling 45% originating from waiting rooms.
Conclusions:
- Medical waiting rooms are high-risk environments for measles transmission.
- A substantial proportion of measles cases result from exposures in healthcare waiting areas.
- Implementing targeted measures in medical waiting rooms is essential for achieving measles elimination.