title: Five cases of primary amebic meningoencephalitis in Mexicali, Mexico: study of the isolates.
abstract: Five Naegleria strains isolated from patients with primary amebic meningoencephalitis and one strain isolated from the water of an artificial canal were investigated. All strains were pathogenic for mice when instilled intranasally and showed cytopathic effects in Vero cell cultures. Their growth characteristics (isolation and subculture at 45 degrees C), serological results, and isoenzyme patterns permitted us to identify the six strains as Naegleria fowleri. This is the first time that Naegleria fowleri has been isolated from patients with primary amebic meningoencephalitis in Mexico.
authors.affiliation: Department of Microbiology, E.N.C.B., I.P.N., Carpio y Plan de Ayala, Col. Santo Tomás, Mexico, D.F.
authors.forename: F
authors.initials: F
authors.lastname: Lares-Villa
authors.forename: J F
authors.initials: JF
authors.lastname: De Jonckheere
authors.forename: H
authors.initials: H
authors.lastname: De Moura
authors.forename: A
authors.initials: A
authors.lastname: Rechi-Iruretagoyena
authors.forename: E
authors.initials: E
authors.lastname: Ferreira-Guerrero
authors.forename: G
authors.initials: G
authors.lastname: Fernandez-Quintanilla
authors.forename: C
authors.initials: C
authors.lastname: Ruiz-Matus
authors.forename: G S
authors.initials: GS
authors.lastname: Visvesvara
mesh_terms: D000135:Acid Phosphatase / Q000032:analysis; D000293:Adolescent; D000562:Amebiasis / Q000453:epidemiology*; D000818:Animals; D002265:Carboxylic Ester Hydrolases / Q000032:analysis; D002648:Child; D005618:Fresh Water; D006801:Humans; D007223:Infant; D007527:Isoenzymes / Q000032:analysis; D008590:Meningoencephalitis / Q000209:etiology*; D008800:Mexico / Q000453:epidemiology; D051379:Mice; D016848:Naegleria fowleri / Q000201:enzymology / Q000302:isolation & purification / Q000472:pathogenicity; D014709:Vero Cells; D014774:Virulence; D014871:Water Microbiology
chemical_list: D007527:Isoenzymes; D002265:Carboxylic Ester Hydrolases; C034216:propionyl esterase; D000135:Acid Phosphatase