Expert Perspectives on Proactive Viral Defense

H5N1 and H5N5 spread concerns expand to sheep, dairy surveillance is reduced, Poland and Indiana remain outbreak centers, and H5N5 reaches a European polar bear.

Researchers explain HPAI transmission pathways in poultry and dairy, USDA weighs vaccine limits, California dairy studies detect airborne virus, and Wisconsin faces disposal pressures.

HPAI returns to Canada after a 2-month gap. A string of dairy outbreaks have hit Idaho cattle. China reports new H9N2 cases.

Daybreak foods begins H5N1-related layoffs, U.S. flock losses surpass 1000, and Cambodia reports its third human H5N1 case of 2026.