by Vandana Singh, Benzinga Editor March 20, 2023 7:54 AM Executives at GSK Plc GSK-0.03%+ Free Alerts, Moderna Inc MRNA-0.19%+ Free Alerts, and CSL Seqirus, owned by CSL Ltd CSLLY, said they are developing or about to test sample human vaccines against bird flu as a precautionary measure against a future pandemic. Others, like Sanofi SA SNY+1.29%+ Free Alerts, said they “stand ready” to...