Figure 1.

Correlation of initial viral load with the duration after symptom onset in 533 patients. The analysis was performed on 533 NPS collected during the first visit and sent to the Virology Laboratory of the National Institute for Infectious Diseases "L. Spallanzani", Rome, Italy for laboratory diagnosis (r = -0.203, p < 0.0001).

Meschi et al. BMC Infectious Diseases 2011 11:140   doi:10.1186/1471-2334-11-140
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