Malaria Pf vs Pf/Pan Rapid Test
Direct answer: A Pf-only test detects P. falciparum via HRP2; a Pf/Pan test adds a pan-malarial line (pLDH) that catches the non-falciparum species (P. vivax, ovale, malariae). Pf/Pan is the safer default because malaria treatment differs by species.
Comparison table
| Pf only | Pf/Pan | |
|---|---|---|
| Detects | P. falciparum (HRP2) | P. falciparum (HRP2) + all species (pLDH) |
| Coverage | Falciparum only | Falciparum + vivax/ovale/malariae |
| Misses | Non-falciparum malaria | — (Pan line catches others) |
| Best for | Falciparum-endemic regions | Mixed-species regions, species differentiation |
What each test detects
- Pf (HRP2): histidine-rich protein 2, specific to P. falciparum.
- Pan (pLDH): lactate dehydrogenase common to all Plasmodium species.
Strengths
- Pf: high sensitivity for falciparum; lower cost.
- Pf/Pan: species differentiation, full malaria coverage in one device.
Limitations
- Pf: HRP2 deletion can cause false negatives; misses non-falciparum.
- Pf/Pan: slightly higher cost; HRP2 persists after treatment (positive ≠ treatment failure).
False negative / positive considerations
- False negative: low parasitemia, HRP2 gene deletion (Pf).
- False positive: persistent HRP2 antigenemia after treatment.
Confirmatory testing
Microscopy remains the reference; RDTs support rapid field diagnosis and species-guided treatment.
Procurement considerations
For mixed-species or P. vivax regions, stock Pf/Pan. Confirm room-temperature stability and CE scope for tender programs.
Related pages
Which test to choose
Choose Pf/Pan for mixed-species or P. vivax regions (species differentiation); choose Pf-only for falciparum-endemic regions at lower cost.
Last reviewed: 2026-09-12