- Prevalence (%)* of other TTI markers in blood donors among the 13 provinces.
| Regions | HIV NAT | Anti-HIV 1/2 | Anti-HTLV I/II | Syphilis |
|---|---|---|---|---|
| Northern region | ||||
| Hail | 0.02 | 0.02 | 0 | 0.09 |
| Jouf | 0 | 0 | 0 | 0.13 |
| Tabouk | 0 | 0.007 | 0 | 0 |
| Northern | 0.1 | 0.01 | 0.01 | 0.08 |
| Alqurayat | 0 | 0% | 0 | 0 |
| Central region | ||||
| Riyadh | 0.02 | 0.04 | 0.13 | 0.5 |
| Qassim | 0.01 | 0.03 | 0.01 | 0.02 |
| Eastern region | ||||
| Eastern area | 0 | 0 | 0 | 0.01 |
| Hafr Albatin | 0 | 0 | 0.04 | 0.01 |
| Ahsa | 0.006 | 0.006 | 0 | 0.03 |
| Western region | ||||
| Mekka | 0 | 0 | 0 | 0 |
| Madinah | 0.01 | 0.009 | 0.003 | 0.02 |
| Alqounfoda | 0 | 0 | 0 | 0.11 |
| Jeddah | 0 | 0.005 | 0.002 | 0 |
| Taif | 0.007 | 0.007 | 0% | 0.06 |
| Southern region | ||||
| Aseer | 0.01 | 0.08 | 0.18 | 0.4 |
| Jazan | 0.01 | 0.01 | 0.002 | 0.02 |
| Najran | 0.01 | 0 | 0 | 0 |
| Albaha | 0.01 | 0.01 | 0 | 0.06 |
| Beesha | 0 | 0 | 0.03 | 0.05 |
*Percentage of other TTI-positive donors relative to total donors in respective provinces.
TTI: ransfusion-transmittable infection, HIV: human immunodeficiency virus antibodies,
NAT: nucleic acid testing, HTLV I/II: human T-cell lymphotropic virus-I and -II antibodies