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A safe and reliable blood supply is a crucial part of medical services. Modern blood banking technology has led to increased safety but should not be taken for granted. Infectious complications of blood transfusion, although rare in developed countries, can be life-threatening and lead to significant morbidity and mortality. Knowledge of infectious complications of blood transfusion is imperative for an interprofessional team regularly performing blood transfusions. This activity highlights the various bacterial and non-bacterial infection risks, mitigation strategies, emerging infectious risks, challenges in maintaining a safe blood supply in developing countries, cost considerations, and the challenge of estimating infectious risk when considering the infectious complications of blood transfusion. Objectives: Identify the epidemiological considerations of infectious complications of blood transfusion. Explain the various bacterial and non-bacterial infectious entities carrying the most infectious risk and the tactics utilized to decrease the risk associated with infectious complications of blood transfusion. Describe emerging infectious risks complicating blood transfusions. Summarize the challenges developed and non-developed countries face in maintaining a safe blood supply. Access free multiple choice questions on this topic.

Blood transfusion safety has progressed significantly in modern times. However, infectious complications of blood transfusions can still be encountered from time to time. Although any intravenously administered fluid can transmit infection, blood is a unique medium and is an exceptional mode for transmitting infection. Only through modern blood banking procedures have infectious complications associated with transfusions been reduced to their current rates.[1] As early as the 1930s, syphilis was the only recognized transfusion-transmitted infection (TTI). This list was expanded by the AABB (formerly the American Association of Blood Banks) until, by 2009, it included 77 organisms. Numerous important viral infections were identified—first, hepatitis B virus (HBV), followed by human immunodeficiency virus (HIV). Additionally, there has always been a background transmission of bacteria and parasites causing TTIs, and prion transmission through transfusion was first recognized in the 1990s. Reduction in TTIs has been brought about by donor selection and exclusion and donation testing. For example, the estimated risk of transmission of hepatitis C virus (HCV), HIV, or HBV from a blood transfusion is less than <1:1,000,000. That said, emerging infections and their associated risks emphasize the ongoing need for constant horizon scanning, rapid worldwide information exchange, risk-reduction initiatives, methodical surveillance, and collection of epidemiological data to continue to keep TTIs at an all-time low.[2]

There are many steps in providing patients with safe blood products. Transfusions should be based on clinical assessment and current guidelines. Unnecessary transfusion should be avoided as limiting exposure to blood products is the primary prevention of TTIs. Implementing advanced testing, such as NAT, has significantly advanced transfusion medicine safety regarding infectious entities; however, these advancements are not universal. Close communication between blood banks and clinical services is crucial in establishing safe transfusion practices. Hemovigilance also keeps track of adverse events and helps develop better policies to reduce the chance of TTIs. As medicine is ever-changing, we must keep ourselves updated with the latest guidelines in transfusion. Participation in conferences, CMEs, and symposiums helps transfer and improve patient care through the most up-to-date evidence regarding preventing transfusion complications. Regular interaction between blood bank staff, donation centers, and the patient is crucial.

The transfusion chain is made up of many team members, including clinicians, phlebotomists, blood bank personnel/ laboratories, and nurses, and they play an essential role in preventing and preventing transfusion-related infections. The importance of correctly obtaining, storing, and administering blood products and recipient monitoring post-transfusion cannot be understated as the integrity of the blood product supply chain depends on it. Proper training and regular education of this interdisciplinary team are vital in continuing to maintain and further improve the safety of blood transfusions.