F. Tozzini et al., NEUTRALIZING ANTIBODIES IN CATS INFECTED WITH FELINE IMMUNODEFICIENCYVIRUS, Journal of clinical microbiology, 31(6), 1993, pp. 1626-1629
Sera from cats experimentally infected with five isolates of feline im
munodeficiency vims (FIV) from various geographical regions and from F
IV enzyme-linked immunosorbent assay-seropositive field cats from four
European countries neutralized the Petaluma strain of FIV (FIV-P), or
iginally isolated in California, at high titers. In addition, FIV-P an
d a European isolate proved equally susceptible to neutralization by a
ll sera tested. Coupled with observations by Fevereiro et al. (M. Feve
reiro, C. Roneker, A. Laufs, L. Tavares, and F. de Noronha, J. Gen. Vi
rol. 72:617-622, 1991), these findings indicate that most if not all F
IV strains circulating in Europe and the United States share important
neutralization-inducing epitopes.