Volume 26, Number 3—March 2020
Dispatch
Diphtheria Outbreaks in Schools in Central Highland Districts, Vietnam, 2015–2018
Noriko Kitamura, Thao T.T. Le, Lien T. Le, Luong D. Nguyen, Anh T. Dao, Thanh T. Hoang, Keisuke Yoshihara, Makiko Iijima, Tran M. The, Hung M. Do, Huy X. Le, Hung T. Do, Anh D. Dang, Mai Q. Vien, and Lay-Myint Yoshida
Table 1
Characteristics of confirmed and epidemiologically linked cases of diphtheria, central highlands of Vietnam, 2015–2018*
| Characteristic |
Confirmed |
Epidemiologically linked |
Epidemiologically linked asymptomatic carriers |
Total |
|---|---|---|---|---|
| Age, y | ||||
| <1 | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| 1–4 | 2 (9) | 1 (10) | 1 (50) | 4 (12) |
| 5–9 | 7 (32) | 2(20) | 1 (50) | 10 (29) |
| 10–14 | 9 (41) | 0 (0) | 0 (0) | 9 (26) |
| 15–19 | 3 (14) | 4(40) | 0 (0) | 7 (21) |
| ≥20 |
1 (5) |
3(30) |
0 (0) |
4 (12) |
| Sex | ||||
| M | 14 (64) | 6 (55) | 1 (50) | 21 (60) |
| F |
9 (36) |
4 (45) |
1 (50) |
14 (40) |
| Vaccination history, no. doses | ||||
| 0 | 9 (41) | 9 (90) | 0 (0) | 18 (51) |
| 1 | 0 (0) | 0 (0) | 1 (50) | 1 (3) |
| 2 | 1 (5) | 0 (0) | 0 (0) | 1 (3) |
| ≥3 | 3 (14) | 0 (0) | 1 (50) | 4 (11) |
| Unknown |
9 (41) |
1 (10) |
0 (0) |
11 (31) |
| Symptoms | ||||
| Fever | 18 (81) | 10 (100) | NA | 28 (82) |
| Sore throat | 15 (68) | 10 (100) | NA | 25 (74) |
| Pseudomembrane | 17 (77) | 9 (90) | NA | 26 (76) |
| Difficulty swallowing | 14 (64) | 10 (100) | NA | 26 (76) |
| Submandibular LN swelling | 14 (64) | 6 (60) | NA | 20 (59) |
| Death |
5 (23) |
3 (30) |
NA |
8 (24) |
| Total no./no. persons investigated (%) | 22/46 (48) | 10/46 (22) | 2/49 (4) | 34/95 (36) |
*Values are no. (%) except as indicated; total no. indicated number of patients with confirmed or suspected diphtheria or with diphtheria carrier status. LN, lymphadenopathic.
Page created: February 20, 2020
Page updated: February 20, 2020
Page reviewed: February 20, 2020
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