Set up SEIR diagrams, explain the meaning of all variables and parameters for the following infection systems smallpox-type pathogen (with life-long immunity) spreading in a homogeneous community with natural mortality - u (mu) , disease-specific mortality uD (mu subscript D), where fraction 0 infinity), is there and ‘endemic' state? Explain the effect of vaccination (f=0 vs. f>0) on disease patterns.
Latency period 10 days
Infectious period 7 days
Natural Resistance level 0.9
Contact rate 2.7/day