Question:

Model a daycare that measles spreads when a sick child comes in. In this daycare, we have 100 susceptible children, and there is a recruitment rate of 5 new kids per year. The rate at which measles is transmitted from an infected child to a susceptible child is assumed to be 0.0005 per year. Also assume that infected children will recover from the disease in 2 weeks.

Info:

So I know

Attempt:

So I would assume

And I think

How do I calculate . I know they recover in 14 days. Would it be 14/365?

What else am I missing?

Any help is certainly appreciated to help me understand a little better. I have tried to read wikipedia. Thanks