| molecular characterization of cryptosporidium spp. in pre-weaned calves in shaanxi province, north-western china. | cryptosporidium, a worldwide protozoan parasite, is one of the most common causes of diarrhoea in humans and animals. the aim of the present study was to determine cryptosporidium species/genotypes in pre-weaned calves in shaanxi province using pcr and sequencing based on the small subunit rrna gene. a total of 258 faecal samples were collected from pre-weaned calves in 19 different farms from six areas in shaanxi province, north-western china. cryptosporidium infection was detected in 14 of 19 ... | 2015 | 25385243 |