On average, each <icon i></icon>...
Infects 1 <icon s></icon> per N days
(at the start of the epidemic)
Takes N days to go from <icon e></icon> to <icon i></icon>
Takes N days to go from <icon i></icon> to <icon r></icon>
Loses immunity <icon s></icon> in N months

R0 is
% of people who are NOT <icon s></icon>
Increased Hygiene
Physical Distancing
Isolating Cases
Quarantining Contacts
Face Masks
Strength of Summer
Vaccinations
R is now
ICU capacity at N%

Simulate N years
in N seconds
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<icon s></icon> Susceptible
<icon e></icon> Exposed
<icon i></icon> Infectious
<icon r></icon> Recovered
- - - Herd Immunity
––– ICU Capacity
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