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Endemic and imported measles virus-associated outbreaks among adults, Beijing, China, 2013

Meng Chen, Yan Zhang, Fang Huang

    Emerging Infectious Diseases
    |February 20, 2015
    PubMed

    Insights

    A 2013 measles resurgence in Beijing primarily affected adults, linked to endemic and imported viruses. Targeting migrant workers with vaccination could be key to measles elimination efforts.

    Area of Science:

    • Epidemiology
    • Infectious Diseases
    • Public Health

    Background:

    • Measles outbreaks pose a significant public health challenge, particularly in densely populated urban areas.
    • Understanding the genetic diversity and transmission patterns of measles viruses is crucial for effective control strategies.

    Purpose of the Study:

    • To investigate the characteristics of the 2013 measles resurgence in Beijing.
    • To identify risk factors and vulnerable populations during the outbreak.
    • To inform future measles prevention and elimination strategies.

    Main Methods:

    • Retrospective analysis of measles cases reported in Beijing during 2013.
    • Genotyping of measles virus strains to identify endemic and imported strains.
    • Analysis of demographic data, including occupation and migration status, of affected individuals.

    Main Results:

    • The 2013 measles resurgence in Beijing predominantly affected the adult population.
    • Outbreaks were associated with both endemic (genotype H1) and imported (genotype D8) measles viruses.
    • Migrant workers represented a disproportionately high number of cases, indicating their vulnerability.

    Conclusions:

    • The findings highlight the importance of adult vaccination in measles control.
    • Targeting mobile populations, such as migrant workers, with vaccination programs is essential for interrupting measles transmission.
    • Implementing effective vaccination strategies among migrant workers could significantly contribute to achieving measles elimination goals in urban settings.

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