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When using the Widal test for typhoid, the AH and BH should be titers of greater or equal than 1:40 and 1:160 respectively for diagnostic purposes.

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11y ago

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What the procedure of widal test?

1)prepare the blood plate(black background). 2)add one drop serum 3)add antigen (o,H,AH,BH) 4)mix the antigen and serum. 5)rotate the sample (1 min) 6)result:positive reactive :negative non-reactive


What procedur of widal test?

1)prepare the blood plate(black background). 2)add one drop serum 3)add antigen (o,H,AH,BH) 4)mix the antigen and serum. 5)rotate the sample (1 min) 6)result:positive reactive :negative non-reactive


Solve A equals bh for b?

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