| evaluation of antibody response to vaccination against west nile virus in thick billed parrots (rhynchopsitta pachyrhyncha). | west nile virus (wnv) was first documented in north america in new york city in 1999. several deaths attributable to wnv have been reported in captive thick-billed parrots (rhynchopsitta pachyrhyncha), an endangered psittacine native to north america. the serologic responses in 12 captive adult thick-billed parrots after a series of three initial wnv vaccine injections with annual boosters over 6 yr was evaluated. in addition, the serologic responses of 11 thick-billed parrot chicks following an ... | 2011 | 22950325 |