What is misra?

Some articles on misra:

Miles And Misra Method
... The Miles and Misra Method (or surface viable count) is a technique used in Microbiology to determine the number of colony forming units in a bacterial ... The technique was first described in 1938 by Miles, Misra and Irwin who at the time were working at the LSHTM ... The Miles and Misra method has been shown to be precise ...