Double Trouble: A Case of ARDS as a Consequence of Influenza and Plasma Donation Causing Severe Neutropenia and Hypogammaglobulinemia.

Influenza infection is known to induce significant immunosuppression, particularly in vulnerable populations, but its impact can be exacerbated by underlying immunodeficiencies. This case report describes the rapid deterioration of a previously healthy 30-year-old male who developed acute respiratory distress syndrome and septic shock due to methicillin-resistant Staphylococcus aureus pneumonia and bacteremia following Influenza A infection. The patient had a history of frequent plasma donations, leading to a significant reduction of immunoglobulins contributing to an increased susceptibility to bacterial coinfection. The patient's condition declined rapidly necessitating veno-venous extracorporeal membrane oxygenation (ECMO) and further veno-arterial-venous ECMO. However, despite all treatments and interventions, he continued to deteriorate, sustaining cardiac arrest and death. This case highlights the potential risks associated with frequent plasma donations, particularly their role in causing hypogammaglobulinemia and predisposing individuals to severe bacterial infections. Further studies are necessary to explore the effects of immunoglobulin depletion from plasma donation and its role in the development of severe infections and increased mortality.