What is the mathematical formula for $R_0$ and what does each variable represent?
I have tried searching this to no avail.
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Sign up to join this community$$R_0 ∝ \left(\frac{\text{infection}}{\text{contact}}\right) · \left(\frac{\text{contact}}{\text{time}}\right) · \left(\frac{\text{time}}{\text{infection}}\right)$$
More specifically:
$$R_0 = τ · \bar{c} · d \quad \quad (1)$$
where $τ$ is the transmissibility (i.e., probability of infection given contact between a susceptible and infected individual), $\bar{c}$ is the average rate of contact between susceptible and infected individuals, and $d$ is the duration of infectiousness.
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