Table 2.
Incidence of Invasive Salmonella Infections in Children and Adults, by Region (East and West), Enrolled in the Typhoid Fever Surveillance in Africa Program, March 2010 to January 2014a
| Age Group, y | Salmonella Typhi Incidence/100 000 PYO | iNTS Disease Incidence/100 000 PYO | ||
|---|---|---|---|---|
| East African Region | West African Region | East African Region | West African Region | |
| 0–1 to <1 | 41.4 (5.7–300.6) | 0 | 165.6 (61.5–446.3) | 464.5 (321.5–671.3) |
| 1 to <2 | 65.8 (16.2–267.2) | 82.5 (34.0–200.2) | 32.9 (4.5–238.7) | 1253.8 (998.8–1573.9) |
| 2 to <3 | 45.5 (6.3–330.6) | 427.5 (267.9–682.1) | 0 | 831.2 (594.6–1162.1) |
| 3 to <4 | 205.3 (84.6–498.2) | 683.7 (443.6–1053.8) | 41.1 (5.7–298.1) | 1204.6 (869.6–1668.7) |
| 4 to <5 | 457.1 (244.2–855.6) | 689.0 (431.8–1099.3) | 0 | 267.9 (126.7–566.8) |
| 5 to <6 | 51.7 (19.2–139.4) | 152.4 (78.7–295.2) | 12.9 (1.8–93.9) | 118.6 (56.0–250.8) |
| 6 to <7 | 222.3 (110.3–448.1) | 192.4 (99.3–372.5) | 0 | 85.5 (31.7–230.4) |
| 7 to <8 | 67.2 (33.3–135.4) | 277.4 (160.1–480.7) | 0 | 149.4 (70.6–316.0) |
| 8 to <9 | 75.9 (31.3–184.2) | 318.0 (174.9–578.2) | 0 | 86.7 (27.6–272.4) |
| 9 to <10 | 63.8 (23.7–171.8) | 182.0 (75.0–441.6) | 0 | 254.8 (120.4–538.9) |
| 10 to <15 | 141.8 (92.0–218.6) | 228.9 (148.5–352.9) | 0 | 76.3 (36.1–161.4) |
| 15 to <20 | 104.9 (52.1–211.5) | 30.0 (7.4–122.0) | 0 | 45.1 (14.3–141.5) |
| 20 to <35 | 90.7 (55.2–148.8) | 16.3 (6.7–39.5) | 0 | 13.0 (4.8–35.1) |
| ≥35 | 15.6 (5.0–49.0) | 0 | 31.2 (13.9–70.1) | 0 |
Abbreviations: iNTS, invasive nontyphoidal Salmonella; PYO, person-years of observation.
aWest African countries included Ghana, Burkina Faso, and Guinea-Bissau; East African countries, Kenya, Tanzania, Sudan, and Madagascar.