Research Article

Hopf-Bifurcation Analysis of Pneumococcal Pneumonia with Time Delays

Table 2

Description of parameters.

ParameterDescriptionvalue/unit Source

Recruitment rate22 estd
Effective vaccination rate[28]
Transfer rate from to I classassumed
Natural mortality rate from causes unrelated to the infection[29]
Disease–induced mortality rate[30]
Progression rate from to class[31]
Per capita rate of recovery[32]
Waning rate of vaccine[32]
Proportion of the sero–type not covered by vaccine0.54[33]
Transmission coefficientassumed
Delay for the incubating individuals1–3 days[34]
Delay in seeking medical care2 days[35]