Active West Nile Virus Season Continues in 2024

Data reported to AABB’s West Nile Virus (WNV) Biovigilance Network in the past 90 days suggest that 2024 is an active year for WNV. A total of 190 confirmed-positive donations and 70 suspected WNV-positive donations have been reported in the past 90 days.

The states reporting the highest number of confirmed WNV-positive blood donations are Texas (61), Nevada (16) and California (12). AABB encourages blood collection facilities to support transfusion safety efforts by reporting both initial reactive donations and final test interpretations to the AABB WNV Biovigilance Network platform.

AABB members subscribed to the email alert list receive notification of all reported WNV activity to help trigger a transition from minipool to individual donor nucleic acid testing (ID NAT). Interested parties may contact hemovigilance@aabb.org to subscribe to the email alert. For more information, please visit AABB’s WNV Biovigilance web page.

The AABB Biovigilance Network supports and enhances an identification and tracking initiative of AABB, but it is not intended to supplant or replace public health agency data collection, or to predict the occurrence, frequency or location, but rather to support public health agencies, blood collection facilities and transfusion services.