Table 2

Model parameters and their prior distributions
Parameter description Symbol Prior Source
Per-partnership probability of transmission from female to male used to calculate the force of infection λ. βm U(0.10-1.00) [25]
Per-partnership probability of transmission from male to female used to calculate the force of infection λ. βf U(0.10-1.00) [25]
Average duration of infection for males Tin,m U(0.60,1.70) [26,27]
Average duration of infection for females Tin,f U(0.75,1.50) [28-30]
Average rate of loss of immunity for males; defined as 1/Tim,m i.e. the inverse of the average duration of natural immunity for males rli,m U(0.01,0.33) (SIRS1, SIRS2); U(0.01,1.0) (SIRS3, SIRS4); [31] (SIRS1, SIRS2); Not available (SIRS3, SIRS4);
Average rate of loss of immunity for females; defined as 1/Tim,f i.e. the inverse of the of natural immunity for females rli,f U(0.01,0.33) (SIRS1, SIRS2); U(0.01,1.0) (SIRS3, SIRS4); [31] (SIRS1, SIRS2); Not available (SIRS3, SIRS4);
Probability of seroconversion for males pm U(0.01,0.30) [15]
Probability of seroconversion for females pf U(0.40,0.70) [32]
Average rate of seroreversion for males rsr,m U(0.01,0.10) [33]
Average rate of seroreversion for females rsr,f U(0.10,1.00) [18,32,34]
Average degree of immunity for seropositive males sm U(0.00,1.00) Not available
Average degree of immunity for seropositive females sf U(0.10,1.00) [35-37]
Average time to seroconversion for males (a proportion of Tin,m) Tsc,m U(0.50,0.95) [15]
Average time to conversion for females (a proportion of Tin,f) Tsc,f U(0.50,0.95) [32,33]
Degree of assortativity by age group εa U(0.10,0.90) Not available
Degree of assortativity by sexual activity group εr U(0.10,0.90) Not available

All durations are in years, and all rates are per capita annual rates.

Korostil et al.

Korostil et al. BMC Infectious Diseases 2013 13:83   doi:10.1186/1471-2334-13-83

Open Data