Will droplet digital PCR become the test of choice for detecting and quantifying ocular Chlamydia trachomatis infection? Maybe not. Trachoma is the leading infectious cause of blindness in developing countries. Currently, there is no program to eliminate blinding trachoma as a public health problem. We need better diagnostic tests for research and to assess progress in control programs. Roberts et al. adapted droplet digital PCR (ddPCR), an emulsion PCR process that performs absolute quantitation of nucleic acids, to detect and quantify Chlamydia trachomatis infections.
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