A dengue NS1 rapid test helps detect infection during the first several days of fever, while IgM antibody testing becomes more useful as the illness progresses. A combined Dengue Duo test checks both NS1 antigen and IgG/IgM antibodies, making it useful when the onset of symptoms is unclear. Test selection should follow clinical guidelines and approved product instructions.
What Does Each Dengue Rapid Test Detect?
Dengue remains a common issue across the Philippines. Depending on when the patient starts to feel unwell, it is important to choose the correct testing. Some patients will come in after having a fever for only one day, whilst others may have waited longer.
Understanding what the tests you are using for the Dengue Rapid Test Philippines are looking for can help lab staff know which tests might be required. NS1 tests look for antigens in the blood, whereas IgG/IgM tests look for antibodies. The Dengue Duo takes both approaches.
This helps lab staff know which tests may be useful at certain times and also enables healthcare facilities to ensure they have the right tests.
What is a Dengue NS1 Rapid Test?
The Dengue NS1 Rapid Test looks for Non structural protein 1. This is a protein that gets released into the blood stream during the Dengue infection. Often it can be detected during the first week of illness. This makes it a great option to use when the patient has only had a fever for a short amount of time.
For example, if a patient comes in after two days of fever, the doctor may want to test for NS1. This can help identify if there is a Dengue infection, as the antigen can be picked up quicker.
If the test comes back negative, it does not necessarily mean the patient doesn’t have Dengue. Further tests may be recommended.
What is a Dengue IgG IgM Test?
This test looks for antibodies that have been produced in the body due to Dengue infection. This helps doctors understand how the immune system has reacted to the Dengue infection.
IgM antibodies will generally appear in the blood around four to five days after symptoms start. However this can vary between patients. IgG antibodies may appear later in new infections or may already be present due to a previous Dengue infection.
This is why IgG tests should not be relied on to confirm current infections. The results could be due to previous exposure to Dengue. The patient’s symptoms, length of illness and other lab results are all important.
When should a Dengue Duo be used?
Some patients may not know exactly when their fever started. The patient may have been feeling unwell for a few days. A Dengue Duo test can be useful in this situation. It looks for both NS1 antigens and IgG/IgM antibodies. The Bioline Dengue Duo from Abbott contains both tests within one kit. The results are generally ready in around 15-20 mins.
This gives healthcare professionals information on multiple markers. However it does not guarantee that all Dengue infections will be identified. The results should be considered with the patient’s condition and manufacturer guidelines.
Which Dengue Test Should I Use Each Day of Fever?
It is important to understand when to test for Dengue. The markers in the blood can change as the illness progresses. In the first few days the NS1 antigen will often be found. However, as the immune system starts to produce antibodies the IgM tests become more useful.
Clinical guidelines suggest that in the first seven days of illness, NS1 Antigen should be tested alongside IgM or Molecular alongside IgM. After seven days IgM generally becomes the preferred choice. If unsure when the fever started, a combined kit may be useful.
Lab staff should also consider how well the test performs and its use. These are just guidelines. A negative rapid test does not necessarily mean Dengue is not the issue, especially if symptoms are concerning.
What If the Dengue Rapid Test Comes Back Negative?
Sometimes patients may present with symptoms such as fever, headache and body aches that could be indicative of Dengue. However the rapid test may come back negative. This can be due to the patient being tested too early.
If the patient is still feeling unwell further tests may be suggested. This could include:
- IgM Testing – Looks for antibodies. These will generally appear a few days after symptoms start.
- Molecular – Looks for genetic material of the Dengue virus.
- Further blood tests – Helps doctors track any changes in the patient’s condition.
Don’t ignore any symptoms. Further medical attention should be sought.
How Many Dengue Cases Have Been Reported in the Philippines?
Dengue continues to affect communities across the Philippines. However, according to figures from the Department of Health, on 7th September 2026, there were 128,634 cases reported up to 29th August. This was around 39% less than the 209,631 cases reported in 2025.
However, in relation to the last two weeks, 15,763 cases were reported between 2nd and 15th August. This was a 9% increase compared to the previous two weeks (14,409).
These figures help hospitals and labs prepare. Dengue can vary between periods of reporting and some communities may be busier.
How Can Philippine Labs Prepare for Dengue Season?
If there is an increase of Dengue cases, there may be an increase in testing requirements. Preparation can help labs avoid running out of tests. If multiple patients come in with fever within the same week.
A good place to start is understanding how much testing has been requested previously. Lab managers can look back at how many NS1, IgG/IgM and combined tests have been used during previous rainy seasons. Local Dengue surveillance reports can help understand how much testing may be required.
Lab staff should also consider the expiry dates, storage requirements and how prepared staff are. Healthcare staff should be following the correct procedures when taking samples, testing and interpreting tests. Doing these simple steps can help make busier times easier.
How Many Dengue Test Kits Should I Stock?
Depending on how many patients the lab deals with, larger hospitals may be using hundreds of kits a week. Smaller clinics may use less. Looking back at previous testing can help lab managers understand how much to stock.
For example, if the lab uses 100 kits a week and it takes two weeks for tests to be delivered then they would need to have around 200 to cover the regular testing.
Other factors to consider include:
- Volume of Patients – Are you getting more requests during Dengue season?
- Time to Deliver – How long do your suppliers take to deliver?
- Have Extra Stock – Would you have enough kits if there was a sudden increase in Dengue cases?
- Expiry Dates – Will they expire before being used?
- Storage – Are they being stored correctly?
Ensuring regular stock checks can help avoid shortages.
Why Should Facilities Think About Other Rapid Tests During the Rainy Season?
During the rainy season patients may come into hospitals with symptoms such as fever, headaches, body pain and more. There are various reasons that patients may have these symptoms. Whilst Dengue is a common issue to consider, doctors may wish to investigate other infections.
For example, if Dengue isn’t the cause but Malaria is suspected, the Malaria Rapid Test Philippines may be the correct test to use. Dengue and Malaria tests look for different markers.
This is something to consider when looking at Dengue test kits for the rainy season. Ensure you have tests that are relevant to the patients you are treating. Local diseases, clinical guidelines and resources will help decide what you should be stocking.
Where Can Philippine Facilities Get Abbott Bioline Dengue Tests?
When choosing Dengue rapid tests, lab managers should ensure they understand what the tests are looking for. They should also be aware of what samples the tests can be used on and if they fit the testing requirements. Expiry dates, storage and local authorisation should also be considered.
MEDTEK (Medical Trends and Technologies) supplies diagnostic products to healthcare institutions across the Philippines. We supply Abbott rapid tests. The Bioline range includes NS1 Antigen tests, IgG/IgM Antibody tests and combined Dengue Duo tests. Please check locally to see what is available.
How Can MEDTEK Help With Dengue Season Planning?
Having an understanding of what tests you need and how often they are used can help labs prepare for Dengue season. By knowing what you may need early on, you can ensure you have enough stock to cover.
We supply information on diagnostic products to healthcare institutions across the Philippines. This includes hospitals, private labs, rural health units and Primary Care facilities. You can ask us about the options for Abbott Bioline Dengue rapid tests. We can also help you understand what you may need.
You may also wish to ask us about our Rainy Season Test Bundles. Please check what we currently have available. Having an understanding of what you need can help your purchasing team prepare.
Frequently Asked Questions About Dengue Rapid Testing
What is the difference between Dengue NS1 and IgG/IgM tests?
NS1 tests look for antigens from the Dengue virus. IgG/IgM tests look for antibodies from the immune system.
When should a Dengue NS1 rapid test be carried out?
Generally NS1 tests are useful in the first seven days of illness. Early on in the illness. Follow clinical guidelines.
Who is the Dengue Duo test for?
The Dengue Duo test may be useful for healthcare professionals looking to investigate Dengue. Especially if unsure when symptoms started.
Can a positive IgG result confirm Dengue?
No. A positive IgG result may indicate a previous infection.
Can a patient still have Dengue if they have a negative rapid test?
Yes. A negative result does not fully rule out Dengue. Further medical attention may be required.
Ensure You Have the Right Dengue Rapid Tests
Having the correct Dengue rapid tests can help labs to carry out tests smoothly. Knowing when to use NS1, IgG/IgM and combined tests will help the healthcare teams choose the appropriate tests.
To prepare for Dengue season in Philippine hospitals and diagnostic facilities, have an understanding of what tests you need. Check what stock you have and ensure staff are familiar with the correct procedures.
Want to plan ahead for the rainy season? Contact us on https://medtek.com.ph/contact-us-medtek/ to find out more about our Rainy Season Test Bundles, what Abbott Bioline Dengue tests we have available and options for quotations.
For licensed and trained healthcare professionals. Dengue rapid test results must be interpreted alongside clinical findings and applicable diagnostic guidelines. Product availability, intended uses, and Philippine FDA registration should be confirmed before procurement and clinical use.