id author title date pages extension mime words sentences flesch summary cache txt cord-335215-h9p4kmss Follet, Jérôme Cryptosporidium infection in a veal calf cohort in France: molecular characterization of species in a longitudinal study 2011-12-02 .txt text/plain 4322 245 52 These studies on dairy calves reported a within herd prevalence of Cryptosporidium without identifying species or the relation to the host's age. parvum at the age of 5 weeks were excluded because Cryptosporidium species could not be identified in all of the following samples collected in these animals. The present study based on 18S rDNA and gp60 gene analysis is the first in France to include molecular characterization to describe the prevalence and the host age related susceptibility to different Cryptosporidium species after a follow up of the same animal. This observation shows that prevalence of Cryptosporidium infection decreases with increasing age of the cattle in France as in many other countries [17, 19, [33] [34] [35] [36] [37] [38] . parvum, a prevalent zoonotic species, in 5-week-old calves was in agreement with the report of Atwill et al., who considered that the contribution of cattle to human cryptosporidiosis is limited to calves under 2 months of age [53] . ./cache/cord-335215-h9p4kmss.txt ./txt/cord-335215-h9p4kmss.txt