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Table 1 Epidemiological and clinical characteristics of Japanese Encephalitis cases in Yunnan Province, China, 2005–2017

From: Reduction patterns of Japanese encephalitis incidence following vaccine introduction into long-term expanded program on immunization in Yunnan Province, China

Characteristics

n

%

Total number of cases

4780

100.0

Age group, years

 0–4

1340

28.0

 5–9

1441

30.1

 10–14

658

13.8

 15–19

288

6.0

  ≥ 20

1053

22.0

Gender

 Male

2899

60.6

 Female

1881

39.4

Nationality of patients

 China

4641

97.1

 Myanmar

113

2.4

 Laos

25

0.5

 others

1

0

Occupation of patients

 Farmer

920

19.2

 Student

1585

33.2

 Preschool children

1770

37.0

 Others

505

10.6

JE Case classification

 Laboratory-confirmed cases

3077

64.4

 Clinical cases

1266

26.5

 Suspected cases

437

9.1

Travel History 25 Day prior to onset

 Overseas

33

0.7

 Another Province

42

0.9

 Inside Yunnan Province

217

4.5

 No outside travel history

2560

53.6

 Not recorded

1928

40.3

Severity of patient classified by doctor

 Unknown

2358

49.3

 Mild

749

15.7

 Medium

799

16.7

 Severe

764

16.0

 Very serious

110

2.3

Patient’s JE Vaccination history

 0-dose

1327

27.8

 1-dose

215

4.5

 2-dose

50

1.0

 Unknown

3188

66.7

Outcome

 cured

638

13.3

 sequela

1424

29.8

 death

326

6.8

 Unknown

2392

50.0