Salmonella Typhi and Salmonella Paratyphi A Antigen Detection Test
Comprehensive Introduction to Typhoid Fever Detection
The Salmonella Typhi and Salmonella Paratyphi A Antigen Detection Test represents a significant advancement in the rapid diagnosis of enteric fevers. Typhoid fever, caused by Salmonella Typhi, and paratyphoid fever, caused by Salmonella Paratyphi A, remain significant public health concerns worldwide, particularly in areas with inadequate sanitation. This sophisticated diagnostic tool utilizes immunochromatography technology to detect specific bacterial antigens, providing healthcare providers with critical information for timely intervention and treatment planning.
What This Test Measures and Detects
This specialized antigen detection test identifies specific protein markers unique to Salmonella Typhi and Salmonella Paratyphi A bacteria. The test works by:
- Detecting Vi antigen and other surface antigens specific to Salmonella Typhi
- Identifying O and H antigens characteristic of Salmonella Paratyphi A
- Utilizing antibody-antigen binding principles through immunochromatography
- Providing visual confirmation of bacterial presence through test line development
Technical Methodology
The test employs lateral flow immunochromatography, where sample migration through a nitrocellulose membrane facilitates specific antigen-antibody interactions. This method offers superior sensitivity and specificity compared to traditional culture methods, with results available within the same day of sample collection.
Who Should Consider This Test
This diagnostic test is recommended for individuals presenting with symptoms suggestive of enteric fever, including:
- Persistent high fever (103-104°F) lasting several days
- Severe headache and general malaise
- Abdominal pain and tenderness
- Rose spots on the trunk
- Constipation or diarrhea
- Relative bradycardia (slow heart rate despite high fever)
High-Risk Populations
Particular consideration should be given to:
- Travelers returning from endemic areas
- Individuals with recent exposure to contaminated food or water
- Healthcare workers in endemic regions
- Food handlers and restaurant workers
- Immunocompromised individuals
Significant Benefits of Early Detection
Choosing the Salmonella Typhi and Salmonella Paratyphi A Antigen Detection Test offers numerous advantages:
- Rapid Diagnosis: Same-day results enable immediate treatment initiation
- Early Intervention: Prompt antibiotic therapy reduces complication risks
- Public Health Protection: Early identification helps prevent disease spread
- Cost-Effective: Affordable testing at only $16 USD
- High Accuracy: Advanced immunochromatography ensures reliable results
- Convenient Sampling: Simple serum or stool collection process
Understanding Your Test Results
Proper interpretation of test results is crucial for appropriate clinical management:
Positive Result
A positive test indicates the presence of Salmonella Typhi or Paratyphi A antigens, suggesting active infection. Your healthcare provider will typically recommend:
- Immediate antibiotic therapy based on local resistance patterns
- Supportive care including hydration and fever management
- Follow-up testing to monitor treatment response
- Public health notification if required
Negative Result
A negative result suggests no detectable antigens at the time of testing. However, clinical correlation remains essential, as:
- Early infection may yield false-negative results
- Antibiotic pretreatment can affect test sensitivity
- Additional testing may be necessary if clinical suspicion remains high
Test Pricing and Availability
| Price Type | Amount (USD) |
|---|---|
| Discount Price | $16 |
| Regular Price | $18 |
Service Details
- Turnaround Time: Sample collection daily by 3:30 PM, same-day reporting
- Sample Requirements: 2 mL (1 mL minimum) serum in SST OR 2 g (1 g minimum) stool in sterile container
- Shipping Instructions: Refrigerate during transport, DO NOT FREEZE
- Preparation: No special preparation required
Nationwide Testing Availability
GGC DNA maintains comprehensive testing facilities across the United States, with convenient locations in all major metropolitan areas including New York, Los Angeles, Chicago, Houston, Phoenix, Philadelphia, San Antonio, San Diego, Dallas, San Jose, and many more. Our network ensures accessible, reliable testing services for patients nationwide.
Take Action for Your Health
Don’t let uncertainty about potential typhoid or paratyphoid infection compromise your health and wellbeing. Early detection through the Salmonella Typhi and Salmonella Paratyphi A Antigen Detection Test provides the clarity needed for appropriate medical intervention. Our experienced healthcare professionals are ready to assist you with convenient testing and rapid results.
Call or WhatsApp us today at +1(267) 388-9828 to schedule your test or visit any of our nationwide locations. Protect your health with reliable, affordable diagnostic testing from GGC DNA.

