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Distribution of children showing positive results in the detection of human bocavirus from nasopharyngeal swab specimens. (a) Age distribution (N = 69). (b) Coinfection with other viruses (N = 40). ADV: adenovirus; HMPV: human metapneumovirus; HPIV: human parainfluenza virus; RSV: respiratory syncytial virus; IFV: influenza virus.
