Live attenuated viruses make more effective vaccines than newer protein subunit or recombinant DNA vaccines, but the traditional passaging methods used to generate them often fail to produce a suitable mutant. Mueller et al. improve the production of live attenuated influenza virus by extensive manipulation of codon-pair bias across the genome, which minimizes the risk of reversion to a virulent form.
- Steffen Mueller
- J Robert Coleman
- Eckard Wimmer