| epidemiological survey of crimean-congo hemorrhagic fever virus in yunnan, china, 2008. | objectives: we aimed to determine the seroprevalence of crimean-congo hemorrhagic fever virus (cchfv) infection in yunnan province, china. materials and methods: one thousand six hundred and fifty-seven human serum samples and 1280 ticks (hyalomma asiaticum) were collected from five counties (menglian, menghai, lancang, mengla, and ximeng). serum samples were analyzed independently by indirect immunofluorescence assay and western blotting to detected cchfv antibody. the ticks were examined by re ... | 2011 | 21546303 |