Fig. 5
Contour maps of the pigs-to-human contact transmissibility ( γ p ) versus the super-transmissibility in humans ( β h,2 ) (A) The figure shows maximum number of super-strain over 200 years. The largest outbreaks occur when 2.3 <R 0 < 3.8 (0.24 <β h,2 < 0.4). (B) The figure shows the sum of yearly average super-strain cases over 200 years. The two maximal states occur when 2.5 <R 0 < 3.0 (0.26 <β h,2 < 0.32) and 4.0 <R 0 < 4.5 (0.42 <β h,2 < 0.48). (C) The figure shows the sum of yearly average super-strain cases over 500 years. The long-term cumulative incidence of a super-strain is highest when either: 1.9 <R 0 < 3.0, or 0 <R 0 < 1.9 and a specified range of interaction for the given R 0 . (D) The figure shows the sum of yearly average super-strain cases over 1000 years. The long-term cumulative incidence of a super-strain is highest when either: 1.9 <R 0 < 3.0, or 0 <R 0 < 1.9 and a specified range of interaction for the given R 0 .