| L |
Total population of lower risk individuals |
| SL |
Susceptible, lower risk |
| AL,U |
Early-infected, lower risk, untreated |
| AL,T |
Early-infected, lower risk, treated |
| CL,U |
Chronically infected, lower risk, untreated |
| CL,T |
Chronically infected, lower risk, treated |
| H |
Total population of higher risk individuals |
| SH |
Susceptible, higher risk |
| AH,U |
Early-infected, higher risk, untreated |
| AH,T |
Early-infected, higher risk, treated |
| CH,U |
Chronically infected, higher risk, untreated |
| CH,T |
Chronically infected, higher risk, treated |
