The long quest for a universal influenza vaccine may soon bear fruit, David Greenberg, associate vice president and regional medical head in North America for Sanofi Pasteur, told BioWorld. "We're moving in the right direction," he said, adding that "it's been tough from a research perspective," though his group – the vaccine division of Paris-based Sanofi SA – has been working internally and with collaborators that include the University of Georgia and others. "Progress is definitely being made toward a vaccine that would provide broader protection. I think it's likely that a candidate vaccine would be going into clinical trials in the next year or two. The testing at least is not a decade away, the way we used to talk about it some years ago."