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HEV-IgM Rapid test
Catalog No.: BG702C
INTENDED USE
This test is a single use, rapid device intended for qualitative detection of IgM-class antibodies to hepatitis E virus (HEV) in serum, plasma samples. It is intended to be used in clinical laboratories for diagnosis of acute hepatitis E and management of patients related to infection with hepatitis E virus.
SUMMARY
Hepatitis E virus (HEV) is a non-enveloped, single- stranded RNA
virus identified in 1990. Infection with HEV induces acute or
sub-clinical liver diseases similar to hepatitis A. HEV infections,
endemic and frequently epidemic in developing countries, is seen
also in developed countries in a sporadic form with or without a
history of traveling to endemic area. The overall case-fatality is
0.5~3%, and much higher (15~25%) among pregnant women. A hypothesis
that
HEV infection is a zoonosis was presented in 1995. Then a swine HEV
and later an avian HEV were identified and sequenced separately in
1997 and 2001. Since then, HEV infection include anti-HEV, viremia
and feces excretion of HEV was seen in a wide variety of animals,
i.e., swine, rodents, wild monkeys, deer, cow, goats, dogs and
chicken in both the developing and developed countries. A direct
testimony was reported that the consumption of uncooked dear meat
infected with HEV led to acute hepatitis E in human. And HEV genome
sequences can be detected in pork livers available in the
supermarkets in Japan.
With the discovery of conformational epitopes in HEV, HEV serology
was further explored and understood. The phenomenon of long-lasting
and protective antibodies to HEV was observed which greatly enhance
the understanding to the diagnosis, epidemiology, zoonosis-related
studies and vaccine development.
COMPONENTS
Forty tests/kit
40 HEV IgM colloidal gold rapid test strips, each placed in white
plastic cassette and packed in foil pouch, Instructions for Use,
5ml×1 dilution tubes.
Materials required but not provided: Safety lancet, alcohol
Prep-Pad, Disposable Pipette, clock or timer, specimen collection
container, centrifuge, biohazard waste container
ASSAY PROCEDURE
Allow the test cassette to reach room temperature (appropriately
30minutes) before opening the pouch. Add one drop (approximately
10μL) serum/plasma sample and two drops diluent (about 100μL) into
the sample dilution tube by using the sample dispenser and mix
completely. Then, open the pouch and pipette the dilute sample into
the sample well. Avoid dropping sample in the observation window.
Do not allow the sample to overflow.
Place the cassette on flat surface and read the results within
15-20 minutes. DO NOT INTERPRET RESULT AFTER 20 MINUTES.
RESULTS
Quality Control: One red line will always appear next to the
Control Zone(C) indicating the validity of the test. If no red line
appears, the test is invalid - discard the test and repeat with new
sample and new cassette.
Positive Results: One red line next to the Test Zone (T) indicates
that IgM antibodies to HEV have been detected using this HEV IgM
Rapid Test.
Negative Results: No red line appears within 10 minutes next to the
Test Zone (T) indicating that no IgM antibodies to HEV have been
detected with this HEV IgM Rapid Test. However, this does not
exclude the possibility from infection with HEV.
The positive result obtained with this HEV IgM Rapid Test alone cannot be the final diagnosis of HEV. Any positive result must be interpreted in onjunction with the patient clinical history and another laboratory testing results. Follow-up and supplementary testing of any positive samples with other analytical system (e.g. ELISA, WB) is required to confirm any positive result.