Vaccine coverage in Italy and assessment of the 2012-2014 National Immunization Prevention Plan.

BACKGROUND: In 2012, the ItalianMinistry of Health issued the National Immunization Prevention Plan (Piano Nazionale Prevenzione Vaccinale, or PNPV 2012-2014), with the aim of harmonizing immunization strategies across the country and ensuring equitable access to infectious disease prevention to all citizens. The Plan defines the immunization standards all regions should comply with. OBJECTIVE AND METHODS: As new evidence has accumulated in the field of immunization, and the new National Immunization Prevention Plan is about to be launched, the aim of the current study is to: i. present immunization coverage data (2000-2014) for 14 vaccines included in the PNPV to be offered to the general population, ii. assess to what extent the PNPV coverage targets and objectives have been met, and iii. report on how the PNPV was transposed into regional immunization programs. Data are also available for the eight regions that piloted varicella immunization. RESULTS: The 2012-2014 PNPV first introduced a "lifecourse" approach to vaccination at the institutional level, and has been a milestone for prevention in the Italian health policy agenda. However, infant vaccine coverage rates have been decreasing over the last years, as has influenza immunization in the elderly. HPV vaccine coverage has been increasing for all birth cohorts, but is still far below the targets set in the Plan. Promising preliminary data show that pneumococcal and meningococcal C conjugate vaccines were well introduced in regional immunization schedules. CONCLUSION: The 2012-2014 PNPV objectives have only been partially met, due to several factors, in particular increase in vaccine hesitancy. Strengthened efforts are needed to promote immunization. The new National Immunization Prevention Plan should introduce new vaccines and extend immunization programs to other target populations on the basis of the most recent scientific evidence available. It is of crucial importance that interventions of proven efficacy be planned and implemented to contrast the growing phenomenon of vaccine hesitancy and ultimately increase immunization uptake.

Invasive pneumococcal disease in children and adults in seven Italian regions after the introduction of the conjugate vaccine, 2008-2014.

OBJECTIVE: To describe the trend of invasive pneumococcal disease in the years 2008-2014; to verify the impact of the conjugate vaccine and monitor the occurrence of serotype replacement. DESIGN: Prospective observational study based on data from the national surveillance for invasive bacterial diseases coordinated by the Istituto superiore di sanità. SETTING AND PARTICIPANTS: Seven Italian regions (A.P. Bolzano, A.P. Trento, Emilia-Romagna, Friuli-Venezia Giulia, Lombardia, Piemonte, Veneto), accounting for 43% of the national population. MAIN OUTCOME MEASURES: Number of cases and incidence of invasive pneumococcal diseases: global, stratified by age groups and by serotypes included or not in the PCV13. RESULTS: In 2008-2014, in the 0-4 age group IPD incidence for all serotypes decreased from 7.1 to 2.9/100,000; incidence for vaccine serotypes (VT) decreased from 5.5 to 1.1/100,000, while incidence for non-vaccine serotypes (NVT) increased from 1.6 to 2.0/100,000 (2.5 in 2013). In the >64 age group, IPD incidence increased from 5.3 to 7.5/100,000; VT incidence decreased from 3.9 to 3.2 (4.9 in 2010 and 4.3 in 2013), whereas NVT incidence increased from 1.4 to 4.4/100,000. CONCLUSION: Use of the conjugate vaccine has reduced the number of cases of IPD by VT in children; the increase in IPD by NVT, above all in older age groups, suggests a serotype replacement.

[Polio vaccination failure in Italy, years 2006-2010]. / Mancata vaccinazione antipolio in Italia, anni 2006-2010.

OBJECTIVE: The purpose of this paper is to describe the lack of antipolio vaccination and its reasons, in the period 2006-2010. STUDY DESIGN, SETTING AND PARTICIPANTS. Until 2014 the data on vaccination activities, aggregated at the regional level, were sent to the Ministry of Health using a paper form used to collect the data and then to calculate vaccine coverage (CV) at 24 months. This form contains a section for identifying the reasons for polio vaccination failure. RESULTS: During the reporting period the national CV was always above 95%. The highest rates of non-vaccination were always observed in the same Region. Polio vaccination failure is well explained in 82%of cases, but only three Regions have always provided an explanation, while two have extremely low percentages of explanation, less than 50%. The dominant mode is «noncompliant ¼ (45.5%), followed by «undetectable¼ (26.5%). CONCLUSIONS: The percentage of explanation of non-vaccination was lower than expected. At the moment we cannot clarify why, but only speculate that the lack of a computerized immunization registry has been a key element. Probably, the form used was not sufficiently detailed to monitor the phenomenon of non-vaccination and program interventions. Updating the form, in 2013, we took into account these and other critical issues.

Water-related diseases outbreaks reported in Italy.

Water related disease outbreak (WRDO) statistics in Italy from 1998 to 2005 have been discussed in this paper. The true incidence of WRDO is not reflected in the National Surveillance System (NSS), although this study has provided information on pathogens associated to different water sources, incidence in Regions and inadequacy of regulations. 192 outbreaks and 2546 cases of WRD were reported to the NSS, an average of 318 cases per year. Cases were associated to shellfish (58.79%), drinking water (39.94%) and agricultural products (1.25%). WRDs have been detected in 76% of Regions: central and southern Regions showed lower percentage of cases (35.4%) due to under-reporting. Most of WRD cases in the North were related to drinking water; WRDs in marine coastal Regions were mostly related to shellfish. 49% of Districts (Province) notified WRDs, including only 101 Municipalities. Pathogenic microorganisms were identified in a few cases from clinical investigations. They included enteric viruses, Norwalk viruses, Salmonella, Shigella, Giardia and Campylobacter. There is the need to improve the existing NSS in relation to WRDs. An adequate WRDs Surveillance System should be based on connection between health and environmental authorities, priority pathogens and critical areas identification, response capability and contingency plans.

[A possible scenario of pandemic influenza in Italy]. / Scenario di una possibile pandemia influenzale in Italia.

An influenza pandemic is expected to occur and will require timely countermeasures. Based on analysis of past influenza epidemics, a deterministic model was developed to estimate the expected number of cases (over 12 million), medical consultations (over 5 million), hospital admissions (over 220,000) and deaths (over 43,000) in the absence of public health interventions. The adoption of available measures would reduce the number of cases by about 22%, hospitalizations by 20%, and deaths by 28%.