Yuen notes that the findings also explain clinical anomalies such as why nasal swabs of H5N1 patients are less reliable than throat swabs in detecting the virus. (sciencemag.org)
At the same time, the KLS Foundation is working with laboratories to collect blood samples from KLS patients and their families for a genetic study, and nasal swabs from patients during active episodes with the aim of isolating an infectious trigger. (discovermagazine.com)
A racehorse at Laurel Park tested positive on nasal swab for EHV - 1 wild type, but negative on whole blood. (equimanagement.com)