Genotype III Saint Louis encephalitis virus outbreak, Argentina, 2005.
Comparison of Argentinean Saint Louis encephalitis virus non-epidemic and epidemic strain infections in an avian model.
Clinical data, 6 patients with Saint Louis encephalitis
, Brazil, 2006 * Sample Date of Patient tested by hospital Initial diagnosis no.
Saint Louis encephalitis
virus neutralizing antibody titers detected in domestic birds * NtAb Host Samples P/T prevalence (%) Age (mo) Anser anser (goose) 4/5 80 > 12 Gallus gallus (chicken) 3/3 100 < 3 8/13 62 > 12 Host Range in NtAb titer Anser anser (goose) 1,280 ([dagger]) Gallus gallus (chicken) 1,280 ([dagger]) 20-1,280 * At residence of a patient with Saint Louis encephalitis
, during outbreak in Cordoba, Argentina, February 2005.
Lanciotti, and Eileen Ostlund for providing WNV and Saint Louis encephalitis
virus-specific monoclonal antibodies, flavivirus polyclonal antisera, and WNV RNA lysate positive control; and Marta Sabattini for her assistance and experience shared since the establishment of the arbovirus laboratory at INEVH.
Hemagglutination-inhibition (HI) tests were also undertaken with WNV and Saint Louis encephalitis virus (SLEV) antigen (14).
Interpretation C-7 WNV C-13 WNV C-19 WNV C-20 WNV C-2 SLEV C-4 SLEV C-5 SLEV C-11 SLEV C-12 SLEV C-15 SLEV C-16 SLEV C-18 SLEV C-10 Unidentified flavivirus C-1 Unidentified flavivirus C-3 Unidentified flavivirus C-6 Unidentified flavivirus C-9 Unidentified flavivirus C-14 Unidentified flavivirus C-21 Unidentified flavivirus * WNV, West Nile virus; ELISA, enzyme-linked immunosorbent assay; PRNT, plaque reduction neutralization test; SLEV, Saint Louis encephalitis virus.
WNV is serologically related to the Japanese encephalitis complex of flaviviruses (Flaviviridae), which includes Saint Louis encephalitis
virus (SLEV) (in North and South America), Japanese encephalitis virus (Asia), and Murray Valley encephalitis virus (Australia) (2).