Malaria

BinaxNOW® Malaria

The BinaxNOW® Malaria test is a rapid point of care test for the differential diagnosis of a malaria infection. The simple, three-step test provides results in 15 minutes, allowing for accurate treatment and improved patient outcomes.

Intended Use

The BinaxNOW® Malaria test is an in vitro immunochromatographic assay for the qualitative detection of Plasmodium antigens circulating in human venous and capillary EDTA whole blood of individuals with signs and symptoms of malarial infection. The test targets the histidine-rich protein II (HRPII) antigen specific to Plasmodium falciparum (P.f.) and a pan-malarial antigen, common to all four malaria species capable of infecting humans - P. falciparum, P. vivax (P.v.), P. ovale (P.o.), and P. malariae (P.m.). It is intended to aid in the rapid diagnosis of human malaria infections and to aid in the differential diagnosis of Plasmodium falciparum (P.f.) infections from other less virulent malarial infections. Negative results must be confirmed by thin / thick smear microscopy.

Clinical performance has not been adequately established for P. ovale (P.o.) and P. malariae (P.m.). The user must establish performance characteristics of this test with these Plasmodium species.

The test is not intended for use in screening asymptomatic populations.

Product Details

BinaxNOW® Malaria
Sample Type: Whole blood
Time to Result: 15 minutes
Kit Size: 5 or 25 tests
Performance data: P. falciparum Sensitivity/Specificity 99.7% / 94.2%*
  P. vivax Sensitivity/Specificity– 93.5% / 99.8%
Regulatory: Cleared for distribution by the FDA and CE marked,
  available in 11 languages

For instructions for use, see package insert

About Malaria

Malaria is caused by Plasmodium falciparum, P. vivax, P. ovale, as well as P. malariae. The disease is transmitted through the bite of the Anopheles mosquito. Upon transmission of the Plasmodium parasite to a human by the mosquito, the parasite invades the liver. Within 2 weeks, an immature form of the parasite is released into the blood stream where maturation takes place. Red blood cells that are infected then lyse and cause symptoms of the disease1.

The symptoms of malaria can include fever, chills, malaise, aching and stiff muscles, headache, gastroenteritis and cough. Untreated, malaria can lead to organ damage, anemia, coma and death. P. falciparum or "malignant" malaria usually causes the most severe cases of disease. In fact, even when managed in intensive care units, severe P. falciparum malaria has a mortality rate of 20%2.

The World Health Organization estimates that 300-500 million cases of malaria occur and more than 1 million people die of malaria yearly. Approximately 90% of these deaths occur in Africa and most occur in children under five years of age3.

For more information about Malaria, please see the links below:

CDC: Malaria
CDC: Global Malaria Prevention and Control Program
World Health Organization: Malaria
World Health Organization: World Malaria Report 2008

References

1. Levitz, RE. 2003. Infectious Disease Emergencies: Recognition and Initial Management in the Medical Management of Infectious Disease. CJ Grace, ed. p. 33. Marcel Dekker, Inc., New York.

2. Kirkpatrick, BD. 2003. Evaluation of the International Traveler in Medical Management of Infectious Disease. CJ Grace, ed. p. 761. . Marcel Dekker, Inc., New York.

3. The World Health Organization. Fact Sheet No. 94.

*For parasitemia levels >5,000 (parasites/µl). Please refer to the Product Insert for complete performance data as established in clinical trials.

 

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BinaxNOW® Malaria Specifications

BinaxNOW® Malaria Test

Product Code: B66005
Number of Tests: 5

Product Code: B660-000
Number of Tests: 25

 

BinaxNOW® Malaria Resources

    Brochure       Multilingual
Package Insert
      Procedure Card
 Malaria         Multilingual Package Insert       Procedure Card

Material Safety Data Sheets


Frequently Asked Questions

I added blood to the purple sample pad and two drops or Reagent A to the white sample pad but the sample did not flow sufficiently up the strip.

If the sample does not reach the top of the strip within 1 minute you can add an additional drop of Reagent A to the white sample pad.

Can the BinaxNOW® Malaria test be read after 15 minutes?

No, the results are not stable. If a sample line appears after 15 minutes it must be ignored.

I have treated a patient for P.falciparum and one week later got a positive result on the HRPII line (T1) but no asexual stage parasitaemia or clinical symptoms

HRPII persists in the blood for up to 2 weeks following successful treatment – BinaxNOW® Malaria test cannot be used to monitor treatment.

Can the BinaxNOW® Malaria test differentiate between all four malarial species?

No, the BinaxNOW® Malaria test can only differentiate between P.f. and pan-malarial infection.

Can the BinaxNOW® Malaria test be used with venous blood collected in heparin tubes?

No, if using venous blood it must be collected into EDTA tubes, the BinaxNOW® Malaria test has not been validated for blood collected in heparin tubes.