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While articles about animal model infectivity have been published for<jats:italic>G. duodenalis<\/jats:italic>, the studies have used diverse protocols and parameters to evaluate the infectivity of this protozoan parasite. Hence, the objectives of this study were to (1) conduct a meta-analysis of published literature for cyst shedding and diarrhea outcomes in animal models and (2) develop recommendations to help standardize experimental dose response studies. Results showed that, for the outcome of cyst shedding in faeces, the covariates of infective stage (cyst versus trophozoite),<jats:italic>Giardia<\/jats:italic>dose, and the interactions between doses and infective stage, as well as dose and species of experimental host, were all significant (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:mrow><mml:mi>P<\/mml:mi><\/mml:mrow><\/mml:math>value \u2264 0.05). This study suggests inoculation of the experimental host with cysts rather than trophozoites and administration of higher doses of<jats:italic>Giardia<\/jats:italic>will most likely result in cyst shedding. Based on the results of this meta-analysis, the infective stage (cyst versus trophozoite), parasite dose, and the interactions between dose and infective stage, as well as dose and species of experimental host, should be considered when designing experimental dose response studies that will assist in the study of zoonotic neglected tropical diseases globally.<\/jats:p>","DOI":"10.1155\/2014\/476142","type":"journal-article","created":{"date-parts":[[2014,4,1]],"date-time":"2014-04-01T21:03:19Z","timestamp":1396386199000},"page":"1-11","source":"Crossref","is-referenced-by-count":5,"title":["Individual Subject Meta-Analysis of Parameters for<i>Giardia duodenalis<\/i>Shedding in Animal Experimental Models"],"prefix":"10.1155","volume":"2014","author":[{"given":"A. 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