Rapid particle agglutination test for human immunodeficiency virus: hospital-based evaluation

Area of Science:

• Clinical diagnostics
• Virology
• Public health

Background:

• Accurate and rapid human immunodeficiency virus (HIV) detection is crucial for patient management and public health.
• Existing diagnostic methods require validation for diverse clinical settings and patient populations.

Purpose of the Study:

• To evaluate the performance of a rapid particle agglutination test (Capillus HIV type 1/HIV-2) against established enzyme-linked immunosorbent assays (ELISAs).
• To assess the test's utility for voluntary counseling and testing (VCT) programs in India.

Main Methods:

• Comparative analysis of Capillus HIV-1/HIV-2 test results with ELISA results on hospital-based patient samples.
• Evaluation of test sensitivity, specificity, and reactivity with specific HIV-1 subtypes.

Main Results:

• The Capillus HIV-1/HIV-2 test demonstrated high sensitivity (99%) and specificity (98.9%).
• The test showed reactivity with plasma samples from all individuals infected with HIV-1 subtype C.
• The rapid agglutination test is a viable alternative to ELISAs in this setting.

Conclusions:

• The Capillus HIV-1/HIV-2 rapid particle agglutination test offers excellent diagnostic performance.
• This HIV diagnostic tool can be safely and effectively implemented for voluntary counseling and testing in India, including for subtype C infections.