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EnglishInfluenza season started in Italy during the month of October 2018, approaching the epidemic peak in January 2019. This report aim to explore the mid-term virologic surveillance data of the 2018–2019 influenza season in Sicily and to estimate the effectiveness of seasonal influenza vaccine (VE) against A(H1N1)pdm09 and A(H3N2) influenza viruses. A test-negative design was used to evaluate influenza VE. In Sicily, almost all influenza infections were sustained by influenza type A viruses, of which 62.3% were A(H3N2) and 36.3% A(H1N1)pdm09. A reduction of laboratory confirmed influenza cases in Sicilian population immunized against influenza were observed. In particular, an overall significant protective values were observed for any influenza A viruses (Adj-VE = 44.0%; 95%CI: 11.2–64.7%), especially among 15–64 years old age group (Adj-VE = 59.5%; 95%CI: 0.03–83.1) and among the elderly (Adj-VE = 73.6%; 95% CI: 29.4–90.2).
Costantino, C., Restivo, V., Amodio, E., Colomba, G., Vitale, F., & Tramuto, F. (2019). A mid-term estimate of 2018/2019 vaccine effectiveness to prevent laboratory confirmed A(H1N1)pdm09 and A(H3N2) influenza cases in Sicily (Italy). VACCINE, 37(39), 5812-5816.
| Data di pubblicazione: | 2019 |
| Titolo: | A mid-term estimate of 2018/2019 vaccine effectiveness to prevent laboratory confirmed A(H1N1)pdm09 and A(H3N2) influenza cases in Sicily (Italy) |
| Autori: | |
| Citazione: | Costantino, C., Restivo, V., Amodio, E., Colomba, G., Vitale, F., & Tramuto, F. (2019). A mid-term estimate of 2018/2019 vaccine effectiveness to prevent laboratory confirmed A(H1N1)pdm09 and A(H3N2) influenza cases in Sicily (Italy). VACCINE, 37(39), 5812-5816. |
| Rivista: | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.vaccine.2019.08.014 |
| Abstract: | Influenza season started in Italy during the month of October 2018, approaching the epidemic peak in January 2019. This report aim to explore the mid-term virologic surveillance data of the 2018–2019 influenza season in Sicily and to estimate the effectiveness of seasonal influenza vaccine (VE) against A(H1N1)pdm09 and A(H3N2) influenza viruses. A test-negative design was used to evaluate influenza VE. In Sicily, almost all influenza infections were sustained by influenza type A viruses, of which 62.3% were A(H3N2) and 36.3% A(H1N1)pdm09. A reduction of laboratory confirmed influenza cases in Sicilian population immunized against influenza were observed. In particular, an overall significant protective values were observed for any influenza A viruses (Adj-VE = 44.0%; 95%CI: 11.2–64.7%), especially among 15–64 years old age group (Adj-VE = 59.5%; 95%CI: 0.03–83.1) and among the elderly (Adj-VE = 73.6%; 95% CI: 29.4–90.2). |
| URL: | www.elsevier.com/locate/vaccine |
| Appare nelle tipologie: | 1.01 Articolo in rivista |
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