From Sino Biological Inc. Mar 4 2026 The World Health Organization (WHO) has announced its recommendations for the 2026–2027 Northern Hemisphere influenza vaccine composition. The update highlights two key developments: the continued spread of A (H3N2) subclade K and the growing circulation of new B/Victoria lineage strains. In rapid response, Sino Biological, Inc., a global leader in recombinant technology, has launched a comprehensive panel of antigens for the 2026-2027 Northern Hemisphere