The Impact of Coinfections and Their Simultaneous Transmission on Antigenic Diversity and Epidemic Cycling of Infectious Diseases
Figure 11
Impact of immunity period on coexistence and sustained oscillation in incidence. The narrow gap between two lines represents the area of steady coexistence. Note that when the cross-immunity remains permanent (i.e., ), two strains can coexist under strong enhancement in transmission (i.e., ) and cyclical epidemic can emerge when (data not shown). Other model parameters are , , , infectious period days, and life span years.
