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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