This animal experiment examined hematopoietic and immune-related indicators in mice after repeated exposure to low-intensity microwave radiation. Exposure involved monochromatic pulsed fields in the 2.27–2.78 GHz range with average power flux density of 60 μW/cm² and doses of 0.086–0.86 J/g. The authors report cumulative biological effects consistent with a stress-like adaptive reaction, based on changes in bone marrow, spleen CFU-S measures, erythrocyte hemolytic resistance, and thymus metrics.