Algebraically talking –
- good is the number infected ones exposed to the chance grounds
- a+b ‘s the full confronted with the chance foundation.
- s is the matter contaminated ones not confronted by this new risk foundation
- c+d is the overall not confronted by the risk factor.
If your property value the risk proportion is nearly step one, it’s impractical one exposure to the danger basis try associated with infection to the problem.