Origin and diversity of novel avian influenza a H7N9 viruses causing human infection: phylogenetic, structural, and coalescent analyses (H7N9 report)

Despite Large Research Effort, H7N9 Continues to Baffle (Dr. Fumin quote for H7N9)

SHANGHAI, CHINA—If the infl uenza virus known as H7N9 had a bumper sticker, it would read, “HUGE MYSTERY.” Nearly a month after the fi rst reported cases of people infected with the bird fl u virus, many puzzles remain about how it made the jump to humans and adapted to us, how to prevent transmission, and how frequently an infection causes disease.