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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