TABLE 3.

Comparison of culture, Directigen FluA+B, immunofluorescence, and RT-PCR for influenza A virus

Culture resultImmunofluorescence resultDirectigen FluA+B resultNo. of specimensNo. of specimens positive by RT-PCR/no. tested
PositivePositivePositive223/3
NegativePositivePositive22/2
NegativePositiveNegative11/1
NegativeNegativePositive10/1
NegativeIndeterminateNegative7NDa
NegativeNegativeNegative2170/16
  • a ND, not determined.