Opportunistic Infection in Hematological Malignancies

The interplay between infectious diseases and immunocompromised states, particularly in patients with hematologic malignancies and hematopoietic stem cell transplantation (HSCT) recipients, represents a significant clinical challenge. This chapter delves into the complexities of managing viral and parasitic infections in this vulnerable patient cohort. With an emphasis on the heightened susceptibility to viral pathogens such as cytomegalovirus, herpes simplex virus, and varicella-zoster virus, as well as parasitic infections such as toxoplasmosis, strongyloidiasis, and protozoan diseases, we explore the intricacies of diagnosis, management, and prevention strategies. The evolving landscape of infectious diseases, marked by the emergence of resistant viral strains and the global spread of parasitic infections, underscores the necessity for vigilant surveillance, innovative diagnostic techniques, and the development of new antiviral and antiparasitic therapies. This chapter aims to equip healthcare providers with a comprehensive understanding of the risk factors, clinical manifestations, and therapeutic approaches essential for improving outcomes and quality of life for hematologic and HSCT patients facing these infectious challenges.