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Table 1 Skin testing results

From: The first reported case of Blaptica dubia cockroach allergy

Prick Wheal Flare Interpretation
SPT to common Aeroallergens  
 Histamine 10 40
 Glycerine 50% 0 0
 7 Grass Mix 20 40 Positive
 Bermuda Grass 25 40 Positive
 Johnson Grass 20 40 Positive
 S. Calif Weed Mix B 10 25 Positive
 West 10 Tree Mix 10 25 Positive
 S. Calif 6 Tree Mix 6 22 Positive
 Mold Mix #1 0 0 Negative
 Mold Mix #2 0 0 Negative
 Aspergillus 0 0 Negative
 Candida 0 0 Negative
 Cockroach (P. americana, GB26A03) 0 0 Negative
 Dog Epithelia 0 0 Negative
 Feathers Mix 0 0 Negative
 Horse Epithelia 0 0 Negative
 Cat Hair 0 0 Negative
 Dust Mite 9 15 Positive
SPT to B. dubia*in subject  
 Histamine (subject) 10 23
 Glycerin 50% (subject) 0 0
 B. dubia cast skin (subject) 0 0 Negative
 B. dubia internal organs (subject) 6 9 Positive
 B. dubia feces (subject) 0 0 Negative
SPT to B. dubia in control    
 Histamine (control) 6 25
 Glycerin 50% (control) 0 0
 B. dubia cast skin (control) 0 0 Negative
 B. dubia internal organs (control) 0 0 Negative
 B. dubia feces (control) 0 0 Negative
Intradermal testing in subject
 Histamine 15 35
 Glycerin 50% 3 0
 Cockroach (P. americana GB26A03) 10 30 Positive
  1. Bolded items indicate skin tests that were interpreted as positive
  2. B. dubiaBlaptica dubia cockroaches, SPT Skin prick testing
  3. *SPT to B. dubia internal organs, cast skin, and feces was not performed on the same day of SPT to common aeroallergens in the subject