Retrospective screening of serum and cerebrospinal fluid samples from patients with acute meningo-encephalitis does not reveal past Japanese encephalitis virus infection, Emilia Romagna, Italy, 2011 Gaibani, P and Finarelli, A C and Cagarelli, R and Pierro, A and Rossini, G and Calzolari, M and Dottori, M and Bonilauri, P and Landini, M P and Sambri, V, Eurosurveillance, 17, 20257 (2012), https://doi.org/10.2807/ese.17.35.20257-en