“…The two Cryptosporidium species identified in lambs from Sardinia, C. parvum and C. ubiquitum , are considered the most common species in sheep together with C. xiaoi (Ye et al, 2013 , Tzanidakis et al, 2014 , Li et al, 2016 , Baroudi et al, 2018 , Díaz et al, 2018a , Mi et al, 2018 , Mammeri et al, 2019 , Qi et al, 2019 , Rabee et al, 2020 , Santín, 2020). Our results are in agreement with most investigations reporting C. parvum as the main species in pre-weaned lambs (Castro-Hermida et al, 2007 , Paoletti et al, 2009 ,Tzanidakis et al, 2014 ) and especially in those presenting diarrhoea (Mueller-Doblies et al, 2008 , Quílez et al, 2008 , Díaz et al, 2010 , 2015 , Papanikolopoulou et al, 2018 , Mammeri et al, 2019 , Kabir et al, 2020 ).…”