Enteroviral meningitis does not exclude concurrent bacterial meningitis.
Basmaci R, Mariani P, Delacroix G, Azib S, Faye A, Taha MK, Bingen E, Bonacorsi S, Romero JR, Rotbart HA, Nyquist AC, Nolte FS. Enteroviral meningitis does not exclude concurrent bacterial meningitis. J Clin Microbiol. 2011 Sep; 49(9):3442-3.