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Can someone please help me to classify the image into alpha, beta and gamma haem

haemolytic bacteria haemolysis

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#1 Celz

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Posted 28 June 2016 - 12:31 AM

Dear all researchers, can you please help me to double confirm the result that I obtained in haemolytic test into alpha, beta and gamma group? This is the first time I performing this test and worry for the wrong interpretation. Thank you very much.  
 

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#2 bob1

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Posted 28 June 2016 - 06:38 PM

alpha = clear, beta=green, gamma=none.



#3 Celz

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Posted 28 June 2016 - 08:39 PM

alpha = clear, beta=green, gamma=none.

Hi, in the image:

1  alpha heamolytic 

3 and 6: beta heamolytic 

2, 4 and 5: gamma heamolytic

Am I right? Tq. 

 



#4 bob1

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Posted 29 June 2016 - 12:07 PM

Your answers look OK. Sometimes the haemolysis can be pretty hard to see, but generally you should see a zone of more than a mm outside the colony area. You can't trust any haemolysis which is behind any colonies. In general you need to look at individual colonies for the haemolysis type rather than a streak.







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