Patent ID: 8669071

Claim:
A method for counting microorganisms present in a biological sample in contact with a culture medium adapted to the growth of said microorganisms, wherein the method comprises executing on a data processing unit program code for: determining at a prior stage number N SA of microorganisms present in the sample; calculating number N SU of microorganisms present in the sample according to number N SA , the calculation being based on a model of microorganism growth in the culture medium according to the following relation: log( N SU )=α×log( N SA )−β×log( C SA )+γ where log is the decimal logarithm, N SU is the calculated number of microorganisms, N SA is the number of microorganisms at the prior stage, C SA is the number of microorganisms at the prior stage divided by the volume of the sample, and α, β, and γ are determined parameters depending on the microorganisms, on the culture medium, and on the time period separating a subsequent stage from the prior stage, α and β being positive.