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Introduction. Influenza represents a matter of serious concern for clinicians, both for outpatient and in hospital setting. The 2017-18 epidemic represented the highest in terms of severity since 2003-04 worldwide. Overall, in Italy 764 cases was classified as “severe form”, with 173 influenza-attributed deaths . The majority of the fatal cases were recorded in the elderly and in patients with multiple comorbidities. However, some sporadic cases were also described in previously healthy people. We report a real-world experience about the management of cases of influenza admitted in a large teaching hospital in the Friuli Venezia Giulia region during the 2017-2018 influenza season. We also provide a practical guide for the management of hospitalized influenza cases. Methods. A retrospective observational analysis wasbconducted among all influenza cases requiring admission in our Center during the 2017-18 season. Results. Overall, 29 patients were admitted at the University Hospital of Udine during the 2017-18 season with a diagnosis of influenza. B virus was responsible for the majority of the cases. More than 65.5% of the subjects presented with a complication. We estimated that 41.4% of the admitted cases were affected by a “severe form”. All these cases required admission in Intensive Care Unit, 27.6% and 10.3% of them needing Oral-Tracheal Intubation and Extracorporeal Membrane Oxygenation, respectively. Fatality rate was 24.1%. Noteworthy, only 9 subjects of our cohort had received vaccination. On the basis of the experience acquired during the past season, we propose a practical guide to approach influenza cases in everyday hospital practice. Conclusion. The cornerstones of the management of all hospitalized influenza cases are the rapid identification and treatment of severe forms. Timely and strictly adherence to contact and respiratory precautions are also fundamental to reduce the risk of intra-hospital outbreaks. Despite the improvements of antiviral therapies and supportive measures, influenza-related morbidity and mortality remain high. According to our opinion, a universal vaccination program represents the only safe and effective method to fill the gap., Journal of Preventive Medicine and Hygiene, Vol 60 No 3 (2019): 2019603

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Background: Influenza vaccines are updated every year to match the vaccine strains with currently circulating viruses; consequently influenza vaccine effectiveness (IVE) has to be assessed annually.Research design and methods: A test-negative case-control study was conducted within the context of the Italian sentinel influenza surveillance network to estimate IVE by age group, virus subtype, and vaccine brand in medically attended laboratory-confirmed influenza.Results: In Italy, the 2018/19 influenza season was characterized by the co-circulation of influenza A(H1N1)pdm09 and A(H3N2) viruses. The adjusted IVE estimate in preventing influenza was moderate (44.8%, 95% CI: 18.8 to 62.5) against A(H1N1)pdm09, whereas there was no evidence of effectiveness (1.8%, 95% CI: -37.8 to 30.1) in persons affected by A(H3N2). IVE against A(H1N1)pdm09 decreased with age ranging from 65.7% to 13.1% among children/adolescents and elderly, respectively; moreover results suggest that Vaxigrip Tetra® was more effective against A(H1N1)pdm09 compared to Fluarix Tetra® [62.5% (95% CI: 34.3 to 78.6) vs 24.5% (95% CI: -40.6 to 59.6)]. Low effectiveness (35.2%, 95% CI: -50.8 to 72.1) against A(H3N2) was detected only in the elderly immunized with Fluad®.Conclusions: Findings suggest that influenza vaccines were low to moderately effective, probably due to a mismatch between circulating and vaccine strains.

Rabies is a global zoonotic disease that occurs in developing and developed countries, producing consistently fatal encephalitis in humans and animals. Rabies virus infects mammals through infected saliva via bites or scratches, although atypical exposures have been documented. In late 2008, wildlife rabies re-emerged in Northeastern Italy in an area bordering Slovenia, spread to Veneto region (Belluno province) and to the autonomous province of Trento and Bolzano. Since then, 287 animal cases have been detected in wild and domestic animals; the last one has been diagnosed in a red fox in February 2011. No human cases have been reported linked to the recent epidemic and Italy has been declared as free from rabies in February 2013. Several oral fox vaccination campaigns accompanied by efficacy monitoring and extensive surveillance of territories affected by the epidemic have been implemented together with education and preventive vaccination of workers at risk of viral exposure (i.e. forestry and wildlife workers, veterinarians, shelters ‘operators and laboratory personnel). The aim of this work was the evaluation of the rabies antibodies level and persistence in workers at risk of exposure and travelers. A total of 347 serum samples were collected: 169 after pre-exposure prophylaxis and 178 after post-exposure prophylaxis performed with different immunization schedules. All sera have been tested to detect rabies virus anti-glycoprotein antibodies by a commercial quantitative indirect ELISA (Platelia TM Rabies II kit; Biorad) and with the reference method FAVN (Fluorescent Antibody Virus Neutralization), according to the procedure recommended by the WHO. The results on the protection level, persistence of antibodies and the comparison between the ELISA and FAVN test will be discussed.

Background Hepatitis B vaccination has proven to be very safe and highly effective. This study assessed the proportion of successfully vaccinated individuals among cases with acute hepatitis B, the proportion of preventable cases if individuals were vaccinated as recommended, and the reasons for failures. Methods We analyzed data reported to the Italian Surveillance System for Acute Viral Hepatitis from 1993 to 2014. Results A total of 362 of 11 311 (3.2%) cases with acute hepatitis B were vaccinated. Of the 277 cases for whom immunization data were available, 50 (18%) received a complete vaccination course according to the correct schedule and before exposure to hepatitis B virus. Molecular characterization of 17 of these cases showed that 6 were infected with S-gene mutants. Among the 10 949 unvaccinated cases, 213 (1.9%) escaped mandatory vaccination and 2821 (25.8%) were not vaccinated despite being at increased risk of infection. Among the latter, the most common risk factors were cohabitation with hepatitis B surface antigen (HBsAg) carriers, intravenous drug use, and homosexual/bisexual practices. Thirty-seven percent of the unvaccinated households with HBsAg carriers were aware of their risk. Lack of trust in the vaccination, negative attitude, and inaccurate beliefs followed by lack of or poor communication and low perceived severity of the disease were the most frequent reasons for vaccine hesitancy. Conclusions Development of acute disease in successfully vaccinated individuals is a rare event. Further efforts are needed to enhance the vaccine coverage rate in individuals at increased risk of infection.

In Italy, the introduction of Universal Varicella Vaccination (UVV) has been decided but postponed, as a national programme, until 2015, when data from Regions which have already implemented it will be available. Starting from 2003, eight Italian Regions (Basilicata, Calabria, Friuli Venezia Giulia, Apulia, Sardinia, Sicily, Tuscany and Veneto) have progressively introduced UVV, in their immunization programme, with different schedules in children aged 13–15 months and 5–6 years, currently a two-dose schedule is adopted by all Regions. In June 2013, an Interregional Group on Varicella Vaccination (IGVV) has been established in order to assess the effectiveness of varicella vaccination with standardized and shared tools. The aim of this study was to evaluate the impact of varicella vaccination on the incidence and hospitalizations due to varicella and its complications in the period 2003–2012 in order to support the Italian decision makers on the future national adoption. Preliminary data showed that a general reduction of incidence and hospitalization rates was observed in the study period, resulting in relevant savings for the National Health Service. Immunization coverage with first dose at 24 months of age was high in all Regions (84%–95%) in 2012. Adverse events due to varicella vaccines were rare and without permanent sequelae. Underreporting of varicella cases and delays in the administration of the first dose of varicella vaccines were the main critical issues. In conclusion, solid evidences in support of universal UVV arise from the experiences available today in Italy.

Purpose: To define the interpretative performance of radiologists experienced in computed tomographic (CT) colonography and to compare it with that of novice observers who had undergone directed training, with colonoscopy as the reference standard. Materials and Methods: Physicians at each participating center received ethical committee approval and followed the committees' requests regarding informed consent. Nine experienced radiologists, nine trained radiologists, and 10 trained technologists from nine centers read 40 CT colonographic studies selected from a data set of 51 studies and modeled to simulate a population with positive fecal occult blood test results: Studies were obtained in eight patients with cancer, 12 patients with large polyp, four patients with medium polyp, and 27 patients without colonic lesions. Findings were verified with colonoscopy. An experienced radiologist used 50 endoscopically validated studies to train novice observers before they were allowed to participate. Observers used one software platform to read studies over 2 days. Responses were collated and compared with the known diagnostic category for each subject. The number of correctly classified subjects was determined for each observer, and differences between groups were examined with bootstrap analysis. Results: Overall, 28 observers read 1084 studies and detected 121 cancers, 134 large polyps, and 33 medium polyps; 448 healthy subjects were categorized correctly. Experienced radiologists detected 116 lesions; trained radiologists and technologists detected 85 and 87 lesions, respectively. Overall accuracy of experienced observers (74.2%) was significantly better than that of trained radiologists (66.6%) and technologists (63.2%). There was no significant difference (P = .33) between overall accuracy of trained radiologists and that of technologists; however, some trainees reached the mean performance achieved by experienced observers. Conclusion: Experienced observers interpreted CT colonographic images significantly better than did novices trained with 50 studies. On average, no difference between trained radiologists and trained technologists was found; however, individual performance was variable and some trainees outperformed some experienced observers. European Association of Radiology Kodak Scholarship