The article addresses the use of tocilizumab, a drug that inhibits IL-6, in treating severe hantavirus pulmonary syndrome. This is a case series studied within the MEURI framework (Mechanism for Exceptions to Use of Unregistered Medicines). The observed patients were treated with tocilizumab as experimental therapy. The results suggest that IL-6 inhibition could be a promising approach for this severe infectious disease. The authors recommend further evaluation of this treatment within MEURI or similar expanded-access frameworks. They also propose conducting randomized trials with standardized data collection to obtain more reliable evidence of the effectiveness of this approach.