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Absolute virus and DIP concentrations using different methods. Genomes (full circle) were measured by qRT-PCR, particles (empty circle) were measured by TEM, and activity (triangle) was determined by plaque assay or interference assay. (A) Full-length genomes, particles, and infectious units decline at a similar rate. (B) Defective genomes, particles, and interfering units follow a similar trend. (C) Total genomes, particles, and activity follow similar trends.
