Time between the first and second outbreaks at varying degrees of pig-to-human interaction The transmission of the super-strain in humans was set at five specific values. Time frames vary for βh,2=0.015 from 41 to 81 years (blue), βh,2=0.0215 from 56 to 82 years (red), βh,2=0.024 from 61 to 70 years (green), for βh,2=0.04 from 58 to 59 years (black), for βh,2=0.084 from 52 to 54 years (magenta). Overall times range from 41 to 82 years.
Coburn et al. BMC Public Health 2011 11(Suppl 1):S6 doi:10.1186/1471-2458-11-S1-S6