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. 2021 May 6;14:239. doi: 10.1186/s13071-021-04744-z

Fig. 1.

Fig. 1

Sensitivity of UR-qPCR for detection of Coxiella burnetii. a The amplification curves indicate the amplification of C. burnetii recombinant DNA, serially diluted from 5.6 × 108 to 5.6 × 100 copies, denoted by numbers 8 to 0, respectively. “N” is negative control without DNA template. b Standard linear regression graph representing the relationship between initial DNA copy number and Ct value, averaged from PCR reactions performed in triplicate