epidemiology of hepatitis B virus infection in South African children.
Blood samples were obtained from each bird preimmunization
, at 7 d after primary immunization, and at 4, 7, 10, 18, 32, and 63 d after secondary immunization.
In the small subset of subjects tested against H1N1 NAI activity (10 placebo and 20 at the 60 mcg VLP dose), the NAI in the VLP treated group increased about 30% over preimmunization
levels while the placebo treated group had no increase over pre-immunization levels.
3 mg/L or a 4-fold increase above the preimmunization
concentration for at least 5 of the 9 serotypes (7).
In all dilutions used, the absorbances obtained for post-immunization IgY exceeded that of preimmunization
The definitive method is immunizing with specific antigens and assessing preimmunization
Since many of the exposures in this review were attributed to domestic animals, strong local animal control activities should be supported, including removal of strays and adherence to leash laws (for cats as well as dogs), animal bite prevention education, and preimmunization
of persons at high risk for rabies exposure.
In the late 1980s there was a partial resurgence, but at a much lower incidence level than had characterized the preimmunization