Fig. 2From: Comparison of a novel microcrystalline tyrosine adjuvant with aluminium hydroxide for enhancing vaccination against seasonal influenzaSerum HAI and MN titres to H1N1 virus. a For HAI test, titres below the black line (a titre of 20) were considered to be sero-negative. ▲ HAI titres of individual sera; group mean titres. b For MN test, pre-bleed sera gave titres of ≤10. ▼ MN titres of individual sera; group mean titresBack to article page