An outbreak of chickenpox in an asylum seeker centre in Italy: outbreak investigation and validity of reported chickenpox history, December 2015-May 2016.

Euro Surveill · 2017 · PMC5718397 · PMID 29162209

Europe PMC DOI

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a decreasing trendno p-value reported

Conversely, specificity showed a decreasing trend except for the oldest age group.

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an increasing trendno p-value reported

We observed an increasing trend for the PPV and decreasing trend for the NPV with increasing age.

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