Figure 1. Viral loads (in RNA copies/mL) in patients with pandemic (H1N1) 2009 (NP) and seasonal H1 and H3 (MP) influenza at time patient sought hospital care against days after symptom onset. Vertical bars indicate ±1 SD. Line plots are slightly offset with respect to each other along the time axis to allow the SD bars to be seen clearly. NP, nucleoprotein; MP, matrix protein.
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