TABLE 1.

Characteristics of superinfection casesa

CaseEstimated timing of superinfection (ypi)Initial infecting subtypeSuperinfecting subtype
QA0130.72-1.1DA
QB0080.83-1.6CC/A
QA4132.0-2.8AA
QB0454.6-5.8A2A
QB7262.8-3.2AA
QD0225.0-5.4AC
  • a References 7 and 38.