Table 1. Parameters involved in the transmission model for MRSA ST398.
Parameters | Description | Value (unit) | References |
λi | Proportion of susceptible individuals who acquires MRSA per unit of time | ||
β 0 | Per-contact transmission probability for MRSA non-ST398 | 0.13 | [20] |
ξ | Relative transmission risk for ST398 MRSA compared to non-ST398 | 0.17 | [11] |
β | Transmission probability for MRSA ST398 | ξβ 0 | |
µT | Clearance rate for transient carrier | 0.94 (d−1) | [21] |
µP * | Clearance rate for persistent carrier | 0.057 (d−1) | [23] |
δ | Probability of acquiring MRSA ST398 from contact with pigs | δ 0 = 0.1 | [5] |
Q | Probability of being a permanent carrier | Tested values: 0.05,0.1,0.2,0.35 |
Assuming clearance rate for persistent LA-MRSA carriage in humans is equivalent to that in pigs. This value is conservative since MRSA ST398 is adapted to pigs.