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Table 1 Patient skin test reactions to allergens and allergens mixed with AS. Summary of patient skin prick responses to dog, cat, mite, Alternaria, and cockroach allergens. Responses to 100% allergen, 90% allergen + 10% diluent, 90% allergen + 10% ASα, or 90% allergen + 10% ASβ were scored as follows: (+) = 3 to 5 mm wheal; (++) = 5 to 7 mm wheal; (+++) = 7 to 10 mm wheal; (++++) = 10 mm or greater wheal; E = erythema; P = pseudopod.

From: Aluminum sulfate significantly reduces the skin test response to common allergens in sensitized patients

Patient Allergen Type 100% Allergen 90% Allergen + 10% Diluent 90% Allergen + 10% AS α 90% Allergen + 10% AS β
1 Mite ++++EP (20 mm W) ++++EP (25 mm W) ++++EP (13 mm W) ++++EP (12 mm W)
2 Alternaria +++ (7 mm W) +++ (8 mm W) + (3 mm W) 0
3 Mite ++++ ++ (5 mm W) 0 (2 mm E) 0
  Cockroach ++++ ++ (6 mm W) + (3 mm W) + (4 mm W)
4 Cat ++++E (21 mm W) ++E (6 mm W) 0 0
  Mite ++++E (16 mm W) + (3 mm W) + (4 mm W) 0
5 Cockroach ++++E ++ ++ 0
6 Cockroach ++++E ++ ++ 0
7 Cat +++ ++ + 0
8 Cat ++++ ++++ ++++ 0
  Mite ++++ ++++ ++++ 0
9 Cat ++++ (20 mm W) + (3 mm W) 0 0
  Dog ++++ (20 mm W) + (3 mm W) + (3 mm W) 0
  Alternaria +++E (7 mm W) ++ (4 mm W) 0 0
10 Cat ++++EP (10 mm W) ++++EP (9 mm W) ++ (5 mm W) 0
11 Cat ++++EP (10 mm W) ++E (5 mm W) ++E (5 mm W) 0 (1 mm W)
  Dog ++++EP (10 mm W) ++++EP (9 mm W) ++E (5 mm W) ++E (5 mm W)
  Mite +++ (7 mm W) +++ (7 mm W) + (3 mm W) 0 (1 mm W)
12 Cat ++++ (14 mm W) ++++ (14 mm W) ++++ (14 mm W) +++ (6 mm W)
  Dog ++++ (10 mm W) ++++ (14 mm W) + (3 mm W) + (3 mm W)
  Alternaria ++++ (11 mm W) ++++ (10 mm W) +++ (7 mm W) 0
  Mite ++++ (10 mm W) +++ (7 mm W) +++ (7 mm W) + (3 mm W)
  Cockroach ++++ (12 mm W) ++++ (10 mm W) ++ (6 mm W) + (4 mm W)
13 Cat ++++PE (15 mm W) ++++ (11 mm W) ++++ (12 mm W) + (3 mm W)
  Mite ++++E (19 mm W) +++ (9 mm W) +++ (9 mm W) ++ (5 mm W)
14 Cat +++ + (4 mm W) ++ (5 mm W) + (4 mm W)
  Alternaria +++ + (4 mm W) + (3 mm W) 0
  Mite ++++ ++++ (13 mm W) ++++ (10 mm W) ++ (6 mm W)
15 Mite +++ (8 mm W) ++ (5 mm W) + (3 mm W) + (3 mm W)
16 Cat ++++ (11 mm W) ++++ (18 mm W) ++++ (12 mm W) ++++ (16 mm W)
  Alternaria ++++ (21 mm W) +++ (8 mm W) ++ (7 mm W) + (4 mm W)
  Mite +++ (10 mm W) ++ (6 mm W) ++ (5 mm W) + (3 mm W)
17 Cat ++++EP (12 mm W) ++++EP (13 mm W) +++E (8 mm W) +++E (7 mm W)
  Mite ++++E (10 mm W) ++++E (10 mm W) +++E (8 mm W) +++E (6 mm W)
18 Mite ++++EP (15 mm W) +++E (8 mm W) ++E (5 mm W) ++E (5 mm W)
19 Mite ++++E (10 mm W) +++E (8 mm W) ++ (6 mm W) + (3 mm W)
20 Mite ++++EP (23 mm W) ++ (6 mm W) ++++ (11 mm W) + (3 mm W)
21 Cat ++++EP (11 mm W) ++++EP (11 mm W) +++EP (8 mm W) +++EP (8 mm W)
  Alternaria ++++ +++ + +
  Mite ++++EP + + +
22 Mite ++++E (9 mm W) +++E (7 mm W) ++E (4 mm W) +E (3 mm W)
23 Alternaria ++++ ++ (3 mm W) ++ (3 mm W) 0
  Mite + +++E (7 mm W) +++E (7 mm W) 0 (1 mm W)
24 Mite +++E + 0 0
  Cockroach +++E 0 0 0
25 Mite +++ +++ + ++
  Cockroach ++++E +++E + +E
26 Cat ++++E (20 mm W) ++++E (13 mm W) ++++E (11 mm W) ++++E (19 mm W)
  Mite ++++ (10 mm W) ++E (5 mm W) +E (4 mm W) +E (3 mm W)
  Cockroach ++++ (15 mm W) +++ 0 E 0
27 Cat ++++ (10 mm W) ++++ (10 mm W) 0 0
  Mite ++++ (10 mm W) ++++ (10 mm W) ++++ (10 mm W) ++++ (10 mm W)
  Cockroach ++++ (10 mm W) ++++ (10 mm W) 0 + (3 mm W)
28 Cockroach ++++ (10 mm W) ++++ (10 mm W) +++ (7 mm W) ++ (6 mm W)
29 Cockroach +E +E 0 0
30 Cockroach ++++ (10 mm W) +++ (7 mm W) + (3 mm W) 0
31 Cockroach +++ (8 mm W) ++ (5 mm W) + (3 mm W) + (3 mm W)
32 Cat ++++ (10 mm W) +++ (8 mm W) +++ (8 mm W) 0
  Dog ++++ (10 mm W) +++ (7 mm W) +++ (7 mm W) + (5 mm W)
33 Cockroach ++ (6 mm W) ++ (6 mm W) + (3 mm W) 0
34 Cat ++++ (10 mm W) ++++ (14 mm W) ++ (6 mm W) ++ (7 mm W)
  Dog ++++ (10 mm W) ++++ (10 mm W) 0 0
35 Cat ++++ (18 mm W) +++ (7 mm W) + (3 mm W) + (3 mm W)
  Dog ++++ (10 mm W) ++ (4 mm W) + (3 mm W) ++ (4 mm W)
36 Dog ++++E (12 mm W) +++E (9 mm W) ++E (5 mm W) +E (4 mm W)
37 Cat ++++E (10 mm W) ++++E (10 mm W) +++ (7 mm W) + (4 mm W)
  Dog ++++EP (14 mm W) ++++EP (12 mm W) 0 0
38 Cat ++++ (11 mm W) ++++EP (13 mm W) ++ (6 mm W) + (3 mm W)
39 Alternaria +++E (8 mm W) +++E (9 mm W) ++ (5 mm W) + (4 mm W)
40 Alternaria ++++E (13 mm W) ++++E (11 mm W) +++E (7 mm W) 0
41 Cat +++ (8 mm W) +++ (7 mm W) ++ (6 mm W) ++ (5 mm W)
42 Cat ++++E ++++E + ++
43 Cat +++ (8 mm W) ++ (6 mm W) ++ (5 mm W) + (4 mm W)
  Dog ++++ (11 mm W) ++ (5 mm W) + (4 mm W) + (4 mm W)
44 Alternaria ++++EP (12 mm W) ++++EP (12 mm W) +++E (9 mm W) ++E (8 mm W)
45 Cat ++++EP +++ ++ +
  Alternaria ++++EP ++ ++ +
46 Cat ++E ++E 0 +E
  Dog ++E (5 mm W) ++E (6 mm W) ++E (6 mm W) +
47 Alternaria ++++E (10 mm W) +++E (7 mm W) ++E (6 mm W) +E (4 mm W)
48 Cat ++++E ++++E + 0
49 Dog +++E + + ++
50 Cat ++++EP (10 mm W) ++++EP (10 mm W) +++E (8 mm W) +++E (7 mm W)