Fig. 2
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12985-018-1005-8/MediaObjects/12985_2018_1005_Fig2_HTML.png)
Viral load at different periods of enrollment after symptom onset. a) total HMPV-infected patients, b) patients with different symptom severity, c) patients infected with different HMPV genotypes and d) patients infected with different HMPV sub-lineages