Pertussis: a review of disease epidemiology worldwide and in Italy.

Int J Environ Res Public Health · 2012 · PMC3546780 · PMID 23330226

Europe PMC DOI

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an increasing trendno p-value reported

In USA, pertussis is a notifiable disease; data collected in the period 1990–2010, showed that the incidence (per 100,000 inhabitants) had a peak in 2004 and that there has been an increasing trend since 2007, which has now surpassed peak rates observed during 2004–2005.

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