[Diagnosis of brucellosis from laboratory parameters and their relation to the clinical picture]

We would like to mention the difficulty in establishing a diagnosis of brucellosis without the help of the laboratory owing to the polymorphous of its symptomatology and its very variable evolution. Quoted are the different parameters used in the Development Laboratory "Dr. Ruiz Castañeda', such as the blue drop, fixation on surface, agglutination on plate, agglutination in tube, intradermal reaction and haemoculture, utilizing each of these in the moment it becomes positive, and its correlation with the state of suffering involved which permits us to catalogue the brucellosis as: acute, chronic and relapse brucellar. It determines also the significance that this classification has in the therapeutic management of the patient, and its evolution.