In: Advanced Math
Consider an SEIR model with both horizontal and
vertical transmission. What assumption can you make about the new
born of mothers from the E and I compartment. Should the infected
new born enter the E compartment or I compartment or both? Think of
the possibilities. Draw a transfer diagram according to the
different assumptions you made and derive the corresponding
differential equations.
Note that :
S = susceptible
E = exposed
I = infectious
R = recovery
The SEIR model assumes people carry lifelong immunity to a disease upon recovery, but for many diseases the immunity after infection wanes over time. In this case, the SEIRS model is used to allow recovered individuals to return to a susceptible state.