Of the 788 serum samples of healthy subjects, positive rate is 9.% ( 09) for typhus, . % for tsutsugamushi disease, and .9 % for Q fever.
Of the 788 serum samples of healthy subjects, positive rate is 9.% ( 09) for typhus, . % for tsutsugamushi disease, and .9 % for Q fever.
788份健康人血清中斑疹伤寒阳性者为 09份( 9.％),恙虫病阳性者 份(.％),Q热阳性者 份(.9％)。 x~检验表明。