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PCR is a useful tool for early diagnosis of an infectious disease. Elaborate.
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Use of PCR can amplify the nucleic acids of bacteria or virus. This can help in detecting their presence even when they are in low concentration. This helps in early detection of a disease which was not possible with conventional diagnostic tools. By the time, conventional diagnostic tools could detect a disease; it was very late because of the very high concentration of pathogens. Nevertheless, early detection by using PCR can help in timely and more efficient treatment.
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