References
- Fouchier, R.A., et al.. 2013. Gain-of-function experiments on H7N9.Science341:612–613.
- Fouchier, R.A., et al.. 2013. Avian flu: Gain-of-function experiments on H7N9.Nature500:150–151.
- Herfst, S., et al.. 2012. Airborne transmission of influenza A/H5N1 virus between ferrets.Science336:1534–1541.