Calculates Effective Vaccine Effectiveness as a function of parameters and time since vaccination. Includes heavyside function to accomendate the daily from injection
effective_ve_wane(VE = 0.8, omega = 0.1, t, theta = 0.3, t_2 = 14)
a numeric, the maximum vaccine efficacy
a numeric, the rate parameter of wane
an integer, the day of interest
a numeric, the general wane of the vaccine to be calibrated
an integer, the inflection of the heavyside
plot(0:30, effective_ve_wane(t = 0:30))