Maixnerová M
National Reference Laboratory for Pertussis and Parapertussis, Charles University in Prague, 3rd Medical Faculty, Prague, Czech Republic.
Cent Eur J Public Health. 2003 Dec;11 Suppl:S23-4.
The results of the 2001 serological survey of antibodies against parapertussis confirmed a relatively high immunity rate of the Czech population. Prevalence of positive titers of antibodies can reach 60% in children 10 years old and ranges from 40 to 60% in the adult population. A rapid increase of immunity rate of the population suggests a high circulation of B. parapertussis in the population.