(F) Global frequency of site 189 H3 HA variants, compared with summed site escape scores at site 189 from 2- to 4-year-old children. Dashed lines on frequency plot indicate maximum exposure period for this cohort, from the earliest birth date to latest serum collection date. Frequency plot...
Here, it is assumed that, in the host population, a portion p of them is vaccinated at birth, then the number of the susceptible host population at time t in (4) changes into S H t = S ˜ H t + ∫ 0 t 1 − p X a e − ∫ t − a t β H I V s d s d a...