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  • Title: Pertussis outbreak in primary and secondary schools in Ludwigslust, Germany demonstrating the role of waning immunity.
    Author: Sin MA, Zenke R, Rönckendorf R, Littmann M, Jorgensen P, Hellenbrand W.
    Journal: Pediatr Infect Dis J; 2009 Mar; 28(3):242-4. PubMed ID: 19209094.
    Abstract:
    A pertussis outbreak primarily affecting school-age children in Ludwigslust, Germany, was investigated in 2006 to estimate attack rates and relative risk of pertussis according to time since last vaccination, after a complete primary course. Results suggested waning immunity beginning approximately 5 years after the last dose of pertussis vaccination. Most cases could have been prevented by earlier booster vaccination.
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