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Table 2 Prevalence and assemblages of Giardia duodenalis in yaks

From: Molecular characterization of Cryptosporidium spp. and Giardia duodenalis from yaks in the central western region of China

Location

No. of yaks

No. positive (%)

Age

<1 year

>1 year

No. positive/No. of yaks

Assemblage (n)

No. positive/No. of yaks

Assemblage (n)

Tianzhu

117

4 (3.4, 1.7–5.1 CIa)

3/40

E (3)

1/77

E (1)

Dangxiong

44

0

0/44

   

Hongyuan

84

1 (1.2, 0–2.9 CI)

1/36

E (1)

0/48

 

Henan

34

2 (5.9, 1.1–10.7 CI)

2/21

E (2)

0/13

 

Dari

62

3 (4.8, 1.7–7.7 CI)

3/30

E (3)

0/32

 

Haihu

66

3 (4.5, 1.7–7.3 CI)

3/34

E (3)

0/32

 

Maduo

39

1 (2.6, 0–6.2 CI)

0/20

 

1/19

E (1)

Qilian

47

1 (2.1, 0–5.1 CI)

1/25

E (1)

0/22

 

Chengduo

52

1 (1.9, 0–4.6 CI)

1/24

E (1)

0/28

 

Total

545

16 (2.9, 2.4–3.4 CI)

14/274 (5.1)b

E (14)

2/271 (0.7)c

E (2)

  1. a CI: 95 % confidence intervals
  2. b and c have significant difference