Zika virusZika threatens world's blood supply: Experts

Published 20 June 2016

Blood safety researchers say it is highly likely that the mosquito-borne Zika virus can be transmitted through blood transfusions and are calling for an evidence-based approach to protecting the blood supply from the threat of Zika virus.

Woman walks through a mosquito fogging to attempt to control Zika // Source: theconversation.com

Blood safety researchers say it is highly likely that the mosquito-borne Zika virus can be transmitted through blood transfusions and are calling for an evidence-based approach to protecting the blood supply from the threat of Zika virus, according to a commentary in the journal Transfusion. NIH says that the researchers say among several possible steps that could be taken to mitigate safety concerns: deferring blood donors who have symptoms of the infection, developing better blood screening tests, and finding ways to reduce the pathogen.

Based on the growing concern over Zika and the blood supply, the National Institutes of Health in February announced interest in supporting research that examines the risk of Zika transmission through transfusion and the potential clinical impact of Zika that might be passed along through blood. In addition the NIH’s National Heart, Lung, and Blood Institute (NHLBI) has made Zika research part of the existing Recipient Epidemiology and Donor Evaluation Study-III (REDS-III) blood safety research program.

Zika virus, once mainly seen in parts of Asia and Africa, has spread through the Americas and is now transmitted by mosquitoes in Puerto Rico. Mosquito-related transmission has not been reported yet in the continental United States, but people who have travelled to areas where active transmission by mosquitoes occurred have developed the infection upon their return to the United States. The virus has been linked to birth defects and neurological disease, with thousands of cases being reported in Brazil.

W. Keith Hoots, director, Division of Blood Diseases and Resources, NHLBI, NIH, and Simone Glynn, Branch Chief, Blood Epidemiology and Clinical Therapeutics Branch, NHLBI, NIH, are co-authors of the commentary and are available to comment on Zika and the threat to blood transfusion.

— Read more in Marion C. Lanteri et al., “Zika virus: a new threat to the safety of the blood supply with worldwide impact and implications,” Transfusion (9 June 2016) (DOI: 10.1111/trf.13677)