“…Specifically, we stratified the population into 27 age groups: 0-2 months, 2-4 months, 4-6 months, 6-8 months, 8-10 months, 10-12 months, 1-2 years, 2-3 years [19,32], infected individuals can be either symptomatic or asymptomatic. Individuals in each age group in the model were divided into six health compartments: susceptible, symptomatic infectious, asymptomatic infectious, whole-cell vaccinated, acellular vaccinated, and recovered.…”