prevalence of toxocara and toxascaris infection among human and animals in iran with metaanalysis approach background toxocariasis is a worldwide zoonotic parasitic disease caused by species of toxocara and toxascaris common in dogs and cats herein a metaanalysis was contrived to assess the prevalence of toxocaratoxascaris in carnivore and human hosts in different regions of iran from april 1969 to june 2019methods the available online articles of english pubmed science direct scopus and ovid and persian sid iran medex magiran and iran doc databases and also the articles that presented in held parasitology congresses of iran were involvedresults the weighted prevalence of toxocaratoxascaris in dogs canis familiaris and cats felis catus was 242 95 ci 180310 and 326 95 ci 226434 respectively also pooled prevalence in jackal canis aureus and red fox vulpes vulpes was 233 95 ci 77432 and 694 95 ci 603778 correspondingly weighted mean prevalence of human cases with overall 28 records was 93 95 ci 63131 the weighted prevalence of toxocara canis toxocara cati and toxascaris leonina was represented as 138 95 ci 98183 285 95 ci 20377 and 143 95 ci 81220 respectivelyconclusion our metaanalysis results illustrate a considerable prevalence rate of toxocaratoxascaris particularly in cats and dogs of northern parts of iran the presence of suitable animal hosts optimum climate and close contact of humans and animals would have been the reason for higher seroprevalence rates of human cases in our region given the significance clinical outcomes of human toxocaratoxascaris necessary measures should be taken