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Babesiosis and blood transfusion: flying under the radar
1Department of Transmissible Diseases, Jerome H. Holland Laboratory for the Biomedical Sciences, American Red Cross, Rockville, MD 20855, USA. leibyd@usa.redcross.org
Abstract:
Infectious agents of disease continue to plague transfusion medicine as an increasing number of pathogens are described that pose a potential blood safety risk. While the recent focus has been on newly emerged agents, several well-established pathogens provide timely reminders that other agents continue to pose threats, but invariably 'fly under the radar', thereby failing to elicit adequate measures to prevent their transmission by blood transfusion. Perhaps foremost among this group of agents are the Babesia spp., which have been known to cause human disease, in the USA, for close to 40 years. B. microti, B. divergens and several Babesia-like agents are responsible for a growing number of human babesiosis infections. Concomitantly, in the USA, there has been a sharp rise in the number of transfusion-transmitted infections of Babesia spp., attributable almost exclusively to B. microti. Despite the obvious public health issues posed by Babesia spp., options for preventing their transmission by blood transfusion remain limited. However, recognition that the Babesia spp. are indeed an ongoing and expanding blood safety threat will probably prove instrumental in the development of viable interventions to limit transmission of these agents.
Insights
Babesia species pose a growing threat to blood safety in the USA, with transfusion-transmitted infections rising. Limited prevention options necessitate recognition of this Babesia risk to develop interventions.
Area of Science:
- Transfusion Medicine
- Infectious Diseases
- Parasitology
Background:
- Infectious agents pose ongoing risks to blood transfusion safety.
- Established pathogens, like Babesia species, often remain under-recognized threats.
- Babesiosis has been a recognized human disease in the USA for nearly 40 years.
Purpose of the Study:
- To highlight Babesia species as a significant and expanding threat to blood safety.
- To underscore the rise in transfusion-transmitted Babesia infections in the USA.
- To emphasize the need for interventions to prevent Babesia transmission via blood transfusion.
Main Methods:
- Review of existing literature on Babesia species and transfusion medicine.
- Analysis of trends in transfusion-transmitted Babesia infections.
- Assessment of current prevention strategies for Babesia transmission.
Main Results:
- Babesia species, particularly Babesia microti, are responsible for a notable increase in transfusion-transmitted infections.
- Human babesiosis cases are rising, linked to Babesia microti, Babesia divergens, and other Babesia-like agents.
- Current methods for preventing Babesia transmission through blood transfusion are limited.
Conclusions:
- Babesia species represent a persistent and growing risk to blood safety.
- Increased awareness of Babesia as a transfusion threat is crucial for developing effective prevention strategies.
- Further research and development of interventions are needed to mitigate Babesia transmission via blood products.
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