Theory and Modern Applications
Table 1 Variables of the models given by assumptions
From: Modeling and analysis of the secondary routine dose against measles in China
Symbol | Definition |
|---|---|
S | Number of susceptible individuals (between the age of 8 months-14 years) |
I | Number of infected individuals (at the age under 14 years) |
R | Number of recovered individuals (under the age of 14 years) |
\(V_{1}\) | Number of vaccinated individuals with MMR1-induced immunity (between the age of 8-24 months) |
\(V_{2}\) | Number of vaccinated individuals with MMR2 (between the age of 18 months-14 years) |
\(\tilde{V}_{1}\) | Number of individuals with waning MMR1-induced immunity between the age of 18 months-14 years |
N | Number of new born susceptible individuals less than 8 months old |