Author: Vittucci, Anna Chiara; Spuri Vennarucci, Valentina; Grandin, Annalisa; Russo, Cristina; Lancella, Laura; Tozzi, Albero Eugenio; Bartuli, Andrea; Villani, Alberto
Title: Pertussis in infants: an underestimated disease Document date: 2016_8_15
ID: 10xqdm7m_4
Snippet: Infants are known to acquire pertussis from adolescents' and adults' contacts that return susceptible to the disease because of waning immunity as well as from unvaccinated children [12] [13] [14] . Clinical manifestations may be different depending on age. Severe symptoms are common in young unvaccinated infants and pertussis continues to be a major cause of vaccine-preventable death in this age group [15] . However, cases with atypical clinical.....
Document: Infants are known to acquire pertussis from adolescents' and adults' contacts that return susceptible to the disease because of waning immunity as well as from unvaccinated children [12] [13] [14] . Clinical manifestations may be different depending on age. Severe symptoms are common in young unvaccinated infants and pertussis continues to be a major cause of vaccine-preventable death in this age group [15] . However, cases with atypical clinical presentations do occur and may be often unrecognized, especially during the winter season, when other respiratory viruses circulate and the minimum incidence of pertussis is usually observed. The annual seasonality in the Italian pertussis incidence peaked between March and August while the minimum incidence has been observed between September and February [10] .
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