Algorithm for the Use of Serologic Tests in the Diagnosis of HIV-1 or HIV-2 Infection - Flowchart

Algorithm for the Use of Serologic Tests in the Diagnosis of HIV-1 or HIV-2 Infection - Flowchart

Algorithm for the Use of Serologic Tests in the Diagnosis of HIV-1 or HIV-2 Infection - Flowchart

«Flowchart»

Screening HIV-1/HIV-2 EIA

Screening HIV-1/HIV-2 EIA

Screening HIV-1/HIV-2 EIA

-

+

Retest in 3–6 months if clinically indicated

Retest in 3–6 months if clinically indicated

Retest in 3–6 months if clinically indicated

Diagnosis of HIV-1 infection

Diagnosis of HIV-1 infection

Diagnosis of HIV-1 infection

Diagnosis of HIV-2 infection

Diagnosis of HIV-2 infection

Diagnosis of HIV-2 infection

^* Stable indeterminate Western blot 4–6 weeks later makes HIV infection unlikely.

^* Stable indeterminate Western blot 4–6 weeks later makes HIV infection unlikely.

^* Stable indeterminate Western blot 4–6 weeks later makes HIV infection unlikely.

^*

End

End

End

HIV-2 EIA

HIV-2 EIA

HIV-2

Repeat in 4–6 weeks^*

Repeat in 4–6 weeks^*

^* * Repeat

HIV-2 EIA

HIV-2 EIA

HIV-2 EIA

Repeat in 4–6 weeks^*

Repeat in 4–6 weeks^*

Repeat in 4–6 weeks^*

^* *

Repeat HIV-1/HIV-2 EIA

Repeat HIV-1/HIV-2 EIA

Repeat HIV-1/HIV-2 EIA

-

+

HIV-1 Western blot

HIV-1 Western blot

HIV-1 Western blot

-

Indeterminate

Indeterminate

Indeterminate

+

-

+

HIV-2 Western blot

HIV-2 Western blot

HIV-2 Western blot

-

+

Indeterminate

Indeterminate

Indeterminate