Transfusion-associated cytomegalovirus infections

Area of Science:

• Transfusion Medicine
• Infectious Diseases
• Virology

Background:

• Cytomegalovirus (CMV) transmission via blood transfusion is a significant concern.
• Primary infection, reactivation, and reinfection with CMV are common post-transfusion events.
• Infection incidence correlates with donor number and blood volume transfused.

Purpose of the Study:

• To review the role of blood products in CMV acquisition.
• To identify at-risk patient populations for transfusion-associated CMV.
• To evaluate strategies for preventing post-transfusion CMV infections.

Main Methods:

• Review of existing data and studies on transfusion-associated CMV.
• Analysis of the source of CMV infection in neonatal transfusion cases.
• Identification of risk factors and susceptible patient groups.

Main Results:

• Blood donors with CMV antibodies (seropositive) transmit CMV to seronegative recipients.
• Primary CMV infections post-transfusion can be prevented by using seronegative donor blood.
• At-risk seronegative patients include pregnant women, premature infants, transplant recipients, and some oncology patients.

Conclusions:

• Transfusion-associated CMV infections are preventable by screening blood donors.
• Using blood products from seronegative donors is crucial for preventing primary CMV infections in at-risk patients.
• This strategy mitigates significant morbidity and mortality in vulnerable populations.