Table 5. Global and regional estimates of the incidence of herpes simplex virus type 1 infection (at any site) by age and sex, 2016.
| WHO region by sex | No. of infected people in millions (population incidence, %) by age |
95% UIa | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0–4 years | 5–9 years | 10–14 years | 15–19 years | 20–24 years | 25–29 years | 30–34 years | 35–39 years | 40–44 years | 45–49 years | Total | ||
| Total | 81.4 (12.3) | 19.1 (3.0) | 7.0 (1.2) | 3.8 (0.7) | 2.7 (0.5) | 2.1 (0.3) | 1.5 (0.3) | 1.2 (0.2) | 0.9 (0.2) | 0.7 (0.2) | 120.4 (2.1) | 114.3–130.1 (2.0–2.3) |
| Female | ||||||||||||
| Africa | 16.7 (21.4) | 1.6 (2.4) | 0.2 (0.3) | < 0.1b (0.0) | < 0.1c (0.0) | < 0.1c (0.0) | < 0.1c (0.0) | < 0.1c (0.0) | < 0.1c (0.0) | < 0.1c (0.0) | 18.5 (4.2) | 16.1–22.0 (3.6–5.0) |
| Americas | 1.0 (3.0) | 0.9 (2.5) | 0.8 (2.1) | 0.7 (1.8) | 0.6 (1.6) | 0.5 (1.3) | 0.4 (1.1) | 0.3 (1.0) | 0.3 (0.8) | 0.2 (0.7) | 5.6 (1.6) | 5.4–5.8 (1.5–1.7) |
| Eastern Mediterranean | 3.1 (7.8) | 1.7 (4.7) | 0.9 (2.8) | 0.5 (1.7) | 0.3 (1.0) | 0.2 (0.6) | 0.1 (0.4) | < 0.1b (0.2) | < 0.1b (0.1) | < 0.1b (0.1) | 6.8 (2.5) | 5.3–8.0 (1.9–2.9) |
| Europe | 1.7 (6.5) | 1.1 (4.2) | 0.7 (2.7) | 0.4 (1.7) | 0.3 (1.1) | 0.2 (0.7) | 0.2 (0.5) | 0.1 (0.3) | 0.1 (0.2) | < 0.1b (0.1) | 4.8 (1.7) | 4.4–5.0 (1.5–1.8) |
| South-East Asia | 10.5 (12.7) | 2.2 (2.5) | 0.4 (0.5) | 0.1 (0.1) | < 0.1b (0.0) | < 0.1b (0.0) | < 0.1c (0.0) | < 0.1c (0.0) | < 0.1c (0.0) | < 0.1c (0.0) | 13.2 (1.7) | 12.6–14.2 (1.7–1.9) |
| Western Pacific | 7.0 (12.3) | 2.3 (4.2) | 0.7 (1.4) | 0.3 (0.5) | 0.1 (0.2) | < 0.1b (0.1) | < 0.1b (0.0) | < 0.1c (0.0) | < 0.1c (0.0) | < 0.1c (0.0) | 10.5 (1.6) | 9.8–13.1 (1.5–2.0) |
| Total | 40.0 (12.6) | 9.8 (3.2) | 3.7 (1.3) | 2.0 (0.7) | 1.3 (0.5) | 0.9 (0.3) | 0.7 (0.2) | 0.5 (0.2) | 0.3 (0.1) | 0.3 (0.1) | 59.4 (2.2) | 56.3–63.9 (2.0–2.3) |
| Male | ||||||||||||
| Africa | 17.2 (21.4) | 1.7 (2.4) | 0.2 (0.3) | < 0.1b (0.0) | < 0.1c (0.0) | < 0.1c (0.0) | < 0.1c (0.0) | < 0.1c (0.0) | < 0.1c (0.0) | < 0.1c (0.0) | 19.0 (4.3) | 16.5–22.6 (3.7–5.1) |
| Americas | 0.9 (2.4) | 0.8 (2.1) | 0.7 (1.9) | 0.6 (1.6) | 0.6 (1.4) | 0.5 (1.3) | 0.4 (1.1) | 0.3 (1.0) | 0.3 (0.9) | 0.2 (0.8) | 5.2 (1.5) | 4.9–5.5 (1.4–1.6) |
| Eastern Mediterranean | 3.3 (7.8) | 1.8 (4.7) | 0.9 (2.8) | 0.5 (1.7) | 0.3 (1.0) | 0.2 (0.6) | 0.1 (0.4) | 0.1 (0.2) | < 0.1b (0.1) | < 0.1b (0.1) | 7.2 (2.4) | 5.7–8.4 (1.9–2.9) |
| Europe | 0.9 (3.1) | 0.7 (2.6) | 0.6 (2.2) | 0.5 (1.9) | 0.5 (1.6) | 0.4 (1.4) | 0.4 (1.1) | 0.3 (1.0) | 0.3 (0.8) | 0.2 (0.7) | 4.7 (1.6) | 4.3–5.1 (1.5–1.7) |
| South-East Asia | 11.4 (12.7) | 2.4 (2.5) | 0.5 (0.5) | 0.1 (0.1) | < 0.1b (0.0) | < 0.1c (0.0) | < 0.1c (0.0) | < 0.1c (0.0) | < 0.1c (0.0) | < 0.1c (0.0) | 14.4 (1.8) | 13.8–15.5 (1.7–1.9) |
| Western Pacific | 7.7 (12.0) | 2.0 (3.2) | 0.5 (0.9) | 0.1 (0.2) | < 0.1b (0.1) | < 0.1b (0.0) | < 0.1c (0.0) | < 0.1c (0.0) | < 0.1c (0.0) | < 0.1c (0.0) | 10.5 (1.5) | 9.4–15.5 (1.3–2.2) |
| Total | 41.3 (12.1) | 9.3 (2.8) | 3.4 (1.1) | 1.9 (0.6) | 1.4 (0.5) | 1.1 (0.4) | 0.9 (0.3) | 0.7 (0.3) | 0.5 (0.2) | 0.4 (0.2) | 61.0 (2.1) | 57.6–66.8 (2.0–2.3) |
UI: uncertainty interval; WHO: World Health Organization.
a 95% UI of the total no. of infected people in millions (95% UI of percentage incidence).
b Numbers are < 50 000 ≥ 10 000.
c Numbers are < 10 000.
Notes: Numbers are the estimated number of people newly infected with herpes simplex virus type 1 during 2016. Incidences are the percentage of infected people in the age- sex- and region-specific population. Incidence values of < 0.05% are rounded to 0.0%. Numbers do not always sum exactly to the totals due to rounding. Regions are World Health Organization definitions.