[Value of biochemical and immunological indicators in differential diagnosis of dust-induced diseases of the respiratory organs].

It was determined that immunological parameters are of highest diagnostic significance: levels of lymphocytes subpopulation (T- and O-lymphocytes) and content of IgA and IgG. A new coefficient is suggested characterizing the ratio of albumin fractions to the sum of alpha 2- and nu-globulins fractions. A diagnostic complex consisting of most informative and accessible for the practical public health indicators is suggested.