title: New enteroviruses, EV-93 and EV-94, associated with acute flaccid paralysis in the Democratic Republic of the Congo.
abstract: Surveillance of acute flaccid paralysis often identifies enteroviruses not typeable by virus neutralization in cell culture. During 2000 and 2001, 186 isolates from 138 children with acute flaccid paralysis in the Democratic Republic of the Congo were sent for typing to the National Reference Centre for Enteroviruses in Lyon, France. The 5' UTR of the viral genome could be amplified by PCR for 158 isolates from 114 patients. Isolates from 89 patients were neutralizable, and contained non-polio enterovirus types. Seventeen children were infected with more than one entero- or adenovirus; another three were co-infected with both these viruses. Serological typing failed with 19 isolates from 13 (9%) patients. The VP1 region of these strains could be amplified by PCR and sequenced, which revealed that five children were infected with CV-A17, EV-70, EV-76, EV-77, or CV-A13. Two patients were doubly infected, one with CV-A24 and E-9, and another with E-27 and EV-81. Isolates from six children contained strains with divergent VP1 region. The amino acid sequences of these complete VP1 regions diverged >or=28% from published types indicating that they represented two new enterovirus types, tentatively designated EV-93 belonging to HEV-B and EV-94 within HEV-D. The latter enterovirus has in parallel been isolated from sewage in Egypt. In conclusion, there was a high frequency of "untypable" enterovirus isolates from cases with acute flaccid paralysis in the Democratic Republic of the Congo. Six of these were shown to represent two enteroviruses not previously described.
authors.affiliation: Swedish Institute for Infectious Disease Control, Solna, Sweden.
authors.forename: Nina
authors.initials: N
authors.lastname: Junttila
authors.forename: Nicolas
authors.initials: N
authors.lastname: Lévêque
authors.forename: Jean Pierre
authors.initials: JP
authors.lastname: Kabue
authors.forename: Gaëlle
authors.initials: G
authors.lastname: Cartet
authors.forename: Fidèle
authors.initials: F
authors.lastname: Mushiya
authors.forename: Jean-Jacques
authors.initials: JJ
authors.lastname: Muyembe-Tamfum
authors.forename: Aurélien
authors.initials: A
authors.lastname: Trompette
authors.forename: Bruno
authors.initials: B
authors.lastname: Lina
authors.forename: Lars O
authors.initials: LO
authors.lastname: Magnius
authors.forename: Jean-Jacques
authors.initials: JJ
authors.lastname: Chomel
authors.forename: Helene
authors.initials: H
authors.lastname: Norder
mesh_terms: D000256:Adenoviridae / Q000145:classification / Q000302:isolation & purification; D000257:Adenoviridae Infections / Q000150:complications / Q000821:virology; D000293:Adolescent; D000818:Animals; D036022:Capsid Proteins / Q000235:genetics; D002648:Child; D002675:Child, Preschool; D015023:Democratic Republic of the Congo; D004770:Enterovirus / Q000145:classification* / Q000235:genetics / Q000276:immunology / Q000302:isolation & purification; D004769:Enterovirus Infections / Q000150:complications / Q000821:virology*; D005243:Feces / Q000821:virology; D005814:Genes, Viral; D006801:Humans; D007739:L Cells; D051379:Mice; D008969:Molecular Sequence Data; D009123:Muscle Hypotonia / Q000821:virology; D009500:Neutralization Tests; D010243:Paralysis / Q000821:virology*; D016133:Polymerase Chain Reaction; D020539:Sequence Analysis, Protein; D013045:Species Specificity
chemical_list: D036022:Capsid Proteins