[The immune status of patients with typhoid fever]

The immune status in 48 typhoid fever (TF) patients has been studied. As revealed in this study, during the fever period of the disease pronounced disturbances in immune homeostasis are observed, which are manifested by T lymphopenia, the prevalence of suppressor subpopulations of T lymphocytes with the prevalence of T helpers, a considerable rise in the level of circulating immune complexes (CIC), mainly highly pathogenic medium- and low-molecular complexes. At the early period of convalescence the preservation of all these signs is indicative of fact that the treat of TF relapse is present. IN the prognosis of the disease the most informative signs are a decrease in the number of T lymphocytes and active (early) rosette-forming cells, an increase in the level of CIC and the presence of 75% and more highly pathogenic medium- and low-molecular complexes among them.