Archive for July, 2012

West Nile Virus ELISA Test | FAQ


Frequently Asked Questions


What kinds of West Nile Virus tests are there?

A West Nile ELISA Test is recommended as the best way to confirm presence of the West Nile virus in human serum.  The West Nile ELISA tests are intended for qualitative detection of IgG and IgM antibodies to West Nile virus in blood.

What’s the difference between West Nile IgG ELISA test and West Nile IgM ELISA test?

Early in the infection period virtually all infected persons show signs of IgG antibodies in blood.   The West Nile IgM ELISA Test for IgM antibodies in serum is consistent with acute-phase infection with the West Nile virus.   The West Nile IgM ELISA test may be ordered along with IgG ELISA test, and both may be re-ordered 2-4 weeks later for follow-up analysis.

How does a West Nile ELISA test work?

A West Nile Virus ELISA Test consists of one enzymatically amplified two-step sandwich-type immunoassay.  The West Nile ELISA test kit employes a recombinant antigen called WNRA which can be used as a rapid serological marker for West Nile infection.  A test kit contains sufficient reagents for one plate of 96 wells (12 x 8 strips) each.

What are the notable features of these tests?

West Nile ELISA tests are safe, accurate, and convenient to use.  They have high sensitivity (96%) and specificity (98%) and are cost effective.   West Nile ELISA tests contain easy-to-follow instructions, sufficient materials for specimen collection, and user-friendly test preparation procedures.  Reliable results will be obtained by using precise laboratory techniques and accurately following the package insert.

Can anyone use the West Nile Virus ELISA Test?

If an infection is suspected, a physician can request an analysis of blood from a clinical laboratory. The West Nile ELISA tests are intended for qualitative detection of IgG and IgM antibodies, respectively, to each corresponding kit.  They are not intended to screen blood or blood components.  The West Nile ELISA tests are available for export throughout the world.  In the U.S. the tests are approved for research only.

How long does the test take?

Laboratory testing time for the West Nile ELISA test is approximately 3 hours.

How can I learn more about your West Nile Virus ELISA tests?

Please check our product page for either ELISA test:

Click here for West Nile IgG ELISA test (#8400-25)
Click here for West Nile IgM ELISA test (#8401-25)


Our top quality West Nile Virus ELISA kits are available at competitive prices and are shipped quickly to any place around the world.  Customers may also inquire about our other ELISA Tests, or Rapid Tests, Serology Tests, IFA Kits, or medical testing Instrumentation.  Please visit our  Home page, or contact our Customer Service Representatives at 818-591-3030 for more information about these tests, or the convenient and inexpensive West Nile ELISA test kits.




Los Angeles-based Diagnostic Automation/Cortez Diagnostics, Inc. is pleased to offer two Cardiac Markers Rapid Tests to customers around the world.  Both 3 in 1 Cardiac Markers Rapid Tests are available in cassette format.   These convenient 3-panel rapid tests are immunochromatography assays for the qualitative and quantitative determination of three biochemical markers (Troponin I, CK-MB, and Myoglobin) simultaneously in human serum or whole blood.  The cardiac markers tests are point-of-care testing devices.


Troponin I/CKMB/Myoglobin Serum, (#166778-1) is a cardiac marker rapid test for the qualitative assessment of cardiac Troponin I, CK-MB and Myoglobin in human serum.


3 in 1 Troponin I/CK-MB/Myoglobin Serum/Whole Blood (#166779-1), is for the qualitative assessment of cardiac Troponin I, CK-MB, and Myoglobin in human serum and whole blood.



These 3 in 1 Cardiac Markers rapid tests are to be used as aids in the diagnosis of Acute Myocardial Infarction (AMI).   In recent years, point-of-care 3 in 1 Cardiac Markers tests have emerged to play a vital role in the rapid diagnosis and treatment of acute chest pain patients.   By combining three cardiac marker tests into one device, the test is able to identify multiple release profiles for improved sensitivity and thus, not only able to identify myocardial infarctions, but also to identify at-risk patients with a possible life-threatening cardiac event in the near future.



• Inexpensive and easy to use

• Early detection of Myocardial Infarction

• Serum or Whole Blood Testing

• Over 98% sensitivity and specificity

• Quick and accurate results in 15 minutes

• Reliable and simple tool for early diagnosis



Diagnostic Automation/Cortez Diagnostics, Inc. also features many other Cardiac Markers rapid tests (C-Reactive Protein Serum and Serum/Whole Blood Rapid Tests, CK-MB Serum and Serum/Whole Blood Rapid Tests, Myoglobin Serum and Serum/Whole Blood Rapid Tests, and Troponin Serum and Serum/Whole Blood Rapid Tests).  Click here for CARDIAC MARKERS RAPID TEST product list.


Various Cardiac Markers ELISA tests are also available:  Digoxin ELISA kit, Lp(a) ELISA kit, CK-MB ELISA test, Troponin I ELISA test, Myoglobin ELISA Kit, and C-Reactive Protein (CRP) ELISA kit   Click here for CARDIAC MARKERS ELISA TESTS.


Please contact our Customer Service Department for more information on these Rapid Tests, ELISA test kits or any other products at 818-591-3030.  Click here for HOME PAGE list of all our products.


What Is a CRP ELISA Test?

C-Reactive Protein – CRP ELISA


C-Reactive Protein – CRP ELISA test is a high sensitivity Cardiac Marker ELISA test for the quantitative determination of C-Reactive Protein concentration in human serum.  Using a CRP ELISA is especially practical for the diagnosis, therapy, and monitoring of inflammatory processes associated with heart function in the context of myocardial infarction, but other conditions can lead to an elevation in cardiac marker level.  Infarction is tissue death caused by an interruption in the blood supply to an area.

C-Reactive Protein-CRP ELISA Kit

There has been extreme interest in the utilization of Cardiac Markers in assisting the clinician at a point-of-care setting (outside clinical lab or hospital emergency room) with diagnosing myocardial inflammation (MI), commonly known as a heart attack.  The easy-to-use CRP ELISA test is an invaluable instrument in improving the accuracy and speed with which chest pain patients can be diagnosed and treated at these alternate-site testing venues.  Studies have shown that point-of-care cardiac marker tests, like the CRP ELISA Test, help in making an early diagnosis, allowing for better utilization of real-time decision making and subsequent treatment.  Total time for a CRP ELISA test result is approximately one hour.


Measurement of C-Reactive Protein by sensitive CRP ELISA tests may add to the predictive value of other cardiac markers [Myoglobin, Troponin, Digoxin, Creatine-kinase-MB, and Lp(a)].


Los Angeles-based Diagnostic Automation/Cortez Diagnostics, Inc. is pleased to offer a variety of Cardiac Marker ELISA test kits:



Digoxin ELISA Kit

Lp(a) ELISA test kit


Troponin I ELISA

Myoglobin ELISA Kit


Please contact our Customer Service Department for more information on any of these Cardiac Markers ELISA test kits at 818-591-3030.  Click here for product page.



Diagnostic Automation/Cortez Diagnostics, Inc., a leading manufacturer and distributor of Drug Tests, Rapid Tests, and ELISA Tests worldwide, is pleased to offer inexpensive and easy-to-use HCV Rapid Tests – Hepatitis C Rapid Tests for distribution throughout the world.*   The HCV Rapid Tests are designed for the special needs of any health organization that is looking for accurate, safe, and cost effective testing methods to detect Hepatitis C infections.  Users are well aware that Hepatitis C virus (HCV) is now known to be the major cause of parenterally transmitted non-A and non-B hepatitis.  HCV antibodies are found in over 80% of patients with well documented non-A and non-B hepatitis.  In a large percentage of HCV infections, transmission is by transfusion and other parental means such as sharing of needles, occupational exposure to blood, and hemodialysis.  However, in close to half of Hepatitis C infections, the route of transmission is unknown.  HCV establishes a chronic infection in 50 to 80 percent of cases.  Because of the epidemic proportions of Hepatitis C infection, the demand worldwide for highly effective Hepatitis C testing methods has increased.  Those health organizations most directly involved in fighting this infectious disease, know that the HCV Rapid Tests are safe, quick, and some of the most effective means of detecting antibodies to hepatitis C virus.  Our inventory of top quality HCV Rapid Tests includes five distinct tests for detection of hepatitis C antibodies.  Three of these tests are convenient and user-friendly HCV Rapid Test StripsThe other two are in cassette formats.  All HCV Rapid Tests are available worldwide, with the exception of the United States.



This HCV Rapid Test  – OneStep HCV RapiCard Insta Test -cassette style is a rapid, direct binding test for the visual detection of hepatitis C antibodies (anti-HCV) in serum or plasma.   HCV Rapid test is used as an aid in the diagnosis of hepatitis C infection and is based on the principle of double antigen sandwich immunoassay for determination of anti-HCV in serum or plasma.  Purified recombinant antigens are employed to identify anti-HCV specifically.  This HCV Rapid Test is very sensitive and only takes 10-20 minutes for the results to be read.  In preparation for the test, separate serum or plasma from blood as soon as possible to avoid hemolysis.  Use only clear, non-hemolyzed specimens.  If the specimen on the cannot be tested on the day of collection, store the specimen in a refrigerator or freezer.  Stir and bring the specimen to room temperature before testing. The results are read visually without an instrument – wait 10-20 minutes and then read result.  A negative result will show only one colored band on the control C region and no apparent band on the test (T) region A positive result will show a pink-colored control C band and a distinct pink-colored band in the test (T) region.   This HCV Rapid Test is for in-vitro diagnostic use only.


Customers who inquire about these HCV Rapid Tests* have also shown interest in our HCV ELISA Test kits.*  One test is the HCV ELISA Test – Ab which is an enzyme-linked Immunosorbent assay for qualitative detection of IgG antibodies to Hepatitis C viruses in human serum or plasma.  This test is intended for screening and diagnosing patients related to hepatitis C infection.  The other convenient and inexpensive HCV ELISA Test is the HCV IgM ELISA test which is an enzyme-linked immunosorbent assay for qualitative detection of IgM-class antibodies to hepatitis C virus in human serum or plasma.  This HCV ELISA Test – IgM  is intended for clinical diagnosis, management, and follow-up of patients related to hepatitis C  infection.  Please contact our Customer Service Department for more information about these HCV Rapid Tests or HCV ELISA Test kits at 818-591-3030.


Los Angeles-based Diagnostic Automation/Cortez Diagnostics, Inc. has established the gold standard in its superior line of Rapid Tests For example, a wide range of easy-to-use and inexpensive Rapid Tests are available:  Hepatitis Rapid Tests, Infectious Disease Rapid Tests, HIV Rapid Tests**, Cancer Rapid Tests, Fertility Rapid Tests, Pregnancy Rapid Tests, Allergy Rapid Tests, and numerous Drug Tests such as Cocaine drug test, Marijuana drug test, K2 Spice drug test, and Drug and Alcohol Rapid Tests.  

Along with this line of Rapid Tests, are a wide range of :  ELISA Test productsHIV ELISA Test kits**, Hepatitis ELISA Tests, Infectious Disease ELISA tests, Allergy ELISA tests,Autoimmune Disease ELISA tests, Blood bank ELISA tests, Cancer ELISA tests, Diabetes ELISA Tests, Food ELISA tests, Parasitology ELISA test, and Veterinary ELISA test kits.  Check our online catalog for any of these Rapid Tests or ELISA Tests and at the same time examine the list of other medical testing products and equipment: IFA Test Kits, CLIA Test Kits, Serology Tests, and superior medical testing Instrumentation, including ELISA Readers and Washers.  For more information on any medical testing products, please contact our Customer Service Department at 818-591-3030.

*   HCV Rapid Tests and HCV ELISA Tests are sold worldwide, with the exception of the United States.

** HIV Rapid Tests and HIV ELISA Tests – check with our Customer Service Department regarding distribution restrictions.