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Published on: October 7, 2011
The duration of mumps virus shedding after the onset of symptoms
Philip M Polgreen1, Lucas C Bohnett, Joseph E Cavanaugh
1Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA. philip-polgreen@uiowa.edu
Abstract:
To determine how long people shed virus after the onset of mumps, we used logistic regression modeling to analyze data from the 2006 outbreak of mumps in Iowa. Our model establishes that the probability of mumps virus shedding decreases rapidly after the onset of symptoms. However, we estimate that 8%-15% of patients will still be shedding the virus 5 days after the onset of symptoms and, thus, may still be contagious during this period.
Insights
Mumps virus shedding decreases quickly after symptom onset. However, 8%-15% of patients may remain contagious for up to 5 days post-symptom onset, indicating a prolonged infectious period.
Area of Science:
- Epidemiology
- Virology
- Public Health
Background:
- Mumps is a contagious viral illness.
- Understanding viral shedding duration is crucial for controlling outbreaks.
Purpose of the Study:
- To quantify the duration of mumps virus shedding after symptom onset.
- To estimate the proportion of patients remaining contagious post-symptom onset.
Main Methods:
- Logistic regression modeling.
- Analysis of data from the 2006 Iowa mumps outbreak.
Main Results:
- Mumps virus shedding probability declines rapidly after symptom onset.
- An estimated 8%-15% of mumps patients shed the virus 5 days after symptom onset.
- A significant proportion of patients may remain contagious during this extended period.
Conclusions:
- Mumps virus shedding duration varies among individuals.
- Public health strategies should consider the potential for prolonged contagiousness in mumps patients.
- Further research may be needed to identify factors influencing shedding duration.
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