Abstract:
OBJECTIVES:Periodical assessments of population susceptibility to polioviruses (PV) is essential for evaluating population protection and planning appropriate vaccination strategies. The aim of the current work was to assess serological protective titers against all three polioviruses in the general population of Florence. METHODS:A convenience sample of 328 sera, collected in 2009 in Florence (Central Italy) was analyzed. Samples were considered protective if neutralizing antibodies were detected at dilutions ≥1:8, according to the WHO protocols. RESULTS:The immune coverage was 75.3%, 69.2% and 46% for PV1, PV2 and PV3, respectively. The protective titers of neutralizing antibodies were generally higher in children up to 14 years of age, with 74.4% (PV1), 75.6% (PV2) and 56.7% (PV3) of seroprevalence. From the age of 11 years, most of the study subjects were seronegative for PV3. CONCLUSIONS:In a polio-free country with strong migration pressures, such as Italy, our results bring clear support to the recent recommendation of Italian health authorities to introduce a fifth dose of IPV vaccine in adolescence all over the country.
journal_name
Hum Vaccin Immunotherjournal_title
Human vaccines & immunotherapeuticsauthors
Giammanco GM,Bechini A,Urone N,Bonura F,Li Muli S,De Grazia S,Bellini I,Tiscione E,Boccalini S,Nastasi Adoi
10.1080/21645515.2018.1475812subject
Has Abstractpub_date
2018-01-01 00:00:00pages
2248-2253issue
9eissn
2164-5515issn
2164-554Xjournal_volume
14pub_type
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