Fig. 1From: Feed-based vaccination regime against streptococcosis in red tilapia, Oreochromis niloticus x Oreochromis mossambicus Serum antibody (IgM) response following oral vaccination with a feed-based vaccine. Double booster at weeks 2 and 6 prolonged the high antibody levels for up to 12 weeks compared to the single booster at week 2 that lasted 6 weeksBack to article page