Three hundred and two stool samples were collected from municipal shelters and owned dogs in different geographical locations in Israel from December 2016 to September 2017 and examined for Giardia and assemblage type by PCR targeting the 18S rRNA and β-giardin genes. Overall Giardia prevalence was 24.5 % (74/30). Giardia prevalence was 1.9-fold higher in dogs ≤ 6 months old compared to > 6 ≤ 12 months old and older dogs [25/61 (41 %), 18/73 (24.6 %) and 31/166 (18.7 %), respectively, (p = 0.001)], 2.3-fold higher in winter [32/90 (35.5 %)] compared to its prevalence during autumn [15/60 (25 %)], spring [10/62 (16.1 %)] and summer [17/89 (19.1 %), p = 0.003)], and 2.7-fold more frequent among diarrheic dogs [23/43 (53.4 %)] compared to those with formed stools [51/253 (20.1 %)], (p = 0.001)]. The Giardia sp. assemblages detected were C and D. Higher infection rates in young, diarrheic dogs, sampled during winter, and housed in municipal shelters, indicates the need for targeted preventive measures.

2016年12月至2017年9月，从以色列不同地理位置的市政避难所和自养狗收集了320个粪便样本，并通过针对18S rRNA和β-贾第蛋白基因的PCR检测了贾第鞭毛虫和集合体类型。贾第虫病总体患病率为24.5％（74/30）。贾第虫≤6个月大的狗的患病率是> 6≤12个月大的狗的患病率高1.9倍[25/61（41％），18/73（24.6％）和31/166（18.7％）， （p = 0.001）]，冬季[32/90（35.5％）]比秋季[15/60（25％）]，春季[10/62（16.1％）]和夏季的流行率高2.3倍[17/89（19.1％），p = 0.003）]，与大便形成的狗[51/253（20.1％）]相比，腹泻狗[23/43（53.4％）]的患病率高2.7倍，（ p = 0.001）]。在贾第虫属。检测到的组合为C和D。在冬季采样并安置在市政庇护所中的幼小腹泻犬感染率较高，表明需要采取有针对性的预防措施。