Two doses of vaccine containing H9N2 (A/ chicken/ Hong Kong/ G9/ 97) strain at 4 different dosages (3.75, 7.5, 15 and 30 µg HA/ dose), were administered four weeks apart.
Neljanädalaste vahedega manustati kaks annust vaktsiini, mis sisaldas H9N2 (A/ kana/ Hong Kong/ G9/ 97) tüve 4- s erinevas annuses (3, 75; 7, 5; 15 ja 30 μg HA annuse kohta).