Figure 4
From: Immune response to allergens in sheep sensitized to house dust mite
Skin wheal reactions in response to HDM allergens. Mean wheal reaction size measured at various time-points following intradermal challenge in control (n = 4) and HDM-sensitized (n = 5) sheep with (A) HDM extract, (B) Der p 1, (C) Der p 2 and (D) histamine. Values presented are means ± s.d.; * indicates a significant difference (p < 0.05) comparing skin responses in sensitized versus control animals.