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Table 4 Cyanobacterial and algal patch series: positive and equivocal patch test results

From: Cutaneous hypersensitivity reactions to freshwater cyanobacteria – human volunteer studies

  

Subject

Test material

Concentration

PT01

PTO2

PT04

PT06

PT19

CO05

CO06

CO08

CO09

C. raciborskii

0.005%

    

(++)* (+)**

    

AWT 205 cell

0.05%

    

(++)* (+)**

    

suspension

0.25%

    

(++)* (+)**

    

C. raciborskii

630 ppb

      

(+/-)*

  

AWT 205 LPS

6 ppm

         

extract

31 ppm

         

M. aeruginosa

          

C. raciborskii

0.005%

    

(+)* (+)**

    

Aphanizomenon sp.

0.05%

    

(++)* (+)**

    

North Pine Dam cell suspension

0.25%

    

(+)* (+)**

    

M. aeruginosa

0.005%

    

(+)**

    

Lake Coolmunda

0.05%

    

(+)**

    

cell suspension

0.25%

   

(+/-)*

(+/-)**

    

M. aeruginosa

260 ppb

      

(+/-)*

  

Lake Coolmunda

3 ppm

       

(+/-)*

(+/-)**

LPS extract

13 ppm

   

(+/-)*

    

(+/-)**

M. aeruginosa

0.005%

     

(+/-)*

   

QH/NR/Ma/03 cell

0.05%

         

suspension

0.25%

 

(+/-)*

 

(+/-)*

     

A. circinalis

0.005%

         

Lake Coolmunda

0.05%

(+/- IR)*

  

(+/-)*

     

cell suspension

0.25%

(+ IR)*

        

Planktothrix sp.

0.005%

         

QH/NR/Px/01 cell

0.05%

(+)*

   

(+)* (+)**

    

suspension

0.25%

    

(+)**

    

C. vulgaris

0.005%

(+/- IR)*

 

(+/-)*

 

(+)*

    

CS-42 cell

0.05%

  

(+/-)*

 

(+)*

(+/-)*

   

suspension

0.25%

  

(+/-)*

 

(+)*

    
  1. *: grading at 48-hour inspection
  2. **: grading at 96-hour inspection
  3. Subject prefix "PT" = dermatology outpatient subject
  4. Subject prefix "CO" = non-patient volunteer