Currently, GVPC is a recommended medium for the detection of Legionella spp. in water samples. However, recovery of Legionella spp. and selectivity properties can be improved.

In the era of rapid microbiological methods, there is a need to improve long-established culture techniques. Drawbacks of the pour plate method include having to melt each medium separately before seeding.

Farrell’s medium (FM) and CITA medium (CM), recommended for Brucella isolation in animal samples, are inhibitory for certain strains. A reformulated Brucella selective medium (BSM), containing half the CM vancomycin and colistin concentrations, improved the isolation of B. melitensis , but not Brucella abortus bv1.

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