1. A method of determining a presence of pulmonary inflammation, comprising the steps of: examining a slide comprising a sputum sample with a microscope combined with an image acquisition system; acquiring images of cells in said sputum sample; analyzing said images of said cells with an image recognition system to detect at least two types of mobile cells; counting individual cells of each of said at least two types of mobile cells; generating at least two sums from said counts, each of said sums representing a number of individual cells; comparing each of said sums to an average number of expected cells for each of said cell types; and generating a score based on said comparison, said score indicating a likelihood of inflammation.