01. Recent Global & Japanese Syphilis Outbreak
In recent years, syphilis has made a significant global resurgence, with Japan experiencing a severe and accelerating outbreak. Official public health data indicates that reported syphilis cases in Japan have skyrocketed from just over 1,000 in 2013 to more than 13,000 in 2025, reaching a decade-long high. The rebound of syphilis is closely linked to frequent population mobility, increased unprotected sexual behavior, and a large number of asymptomatic hidden infections. As most latent carriers show no obvious symptoms, they unknowingly transmit the virus, making mass rapid screening the key to epidemic containment.
02. Understanding Syphilis & Transmission
Syphilis is a chronic, systemic sexually transmitted disease caused by Treponema pallidum (TP), a pathogenic spirochete. It is primarily transmitted through sexual contact, and also spreads via vertical mother-to-child transmission during pregnancy and childbirth, or rare direct contact with infectious lesions.
A typical feature of syphilis infection is its long latent and asymptomatic period. After infection, patients may experience intermittent symptoms that subside spontaneously without treatment. The TP pathogen remains active in the body for years, leading to continuous transmission and potential irreversible organ damage.
03. Four Clinical Stages of Syphilis
1. Primary Syphilis: Painless hard chancres appear at the infection site. The skin lesions heal spontaneously in a short period, but the spirochetes survive and replicate in the human body.
2. Secondary Syphilis: Systemic symptoms occur, including generalized skin rash, fever, lymphadenopathy, and sore throat. Symptoms may fade temporarily and progress to latent syphilis.
3. Latent Syphilis: No visible clinical symptoms, but TP antibodies and pathogens exist in the body. Latent infection can last for months or even several years.
4. Tertiary Syphilis: Late-stage infection occurring years after exposure. It causes permanent damage to the cardiovascular system, brain, and nervous system, triggering organ failure, paralysis, dementia, and even death.
04. Clinical & Public Health Hazards
Untreated syphilis brings severe individual and social hazards. For pregnant women, TP infection easily causes stillbirth, premature delivery, neonatal death, or congenital syphilis in newborns, resulting in lifelong developmental defects in infants. Clinically, syphilis infection greatly increases the risk of HIV co-infection. Due to its long incubation period and hidden symptoms, large-scale population screening is essential for epidemic prevention and control.
05. Significance of Rapid Syphilis Screening
The biggest challenge in syphilis prevention is asymptomatic latent infection. Early and accurate screening can identify potentially infected persons in a timely manner, blocking transmission chains, and avoid irreversible late complications. Traditional laboratory testing is time-consuming and cumbersome, while rapid in vitro diagnostic tests are more suitable for on-site, large-scale, and emergency screening scenarios.
06. Our Professional Syphilis Rapid Test Product
To address the global demand for efficient syphilis screening, we launch the Testsealabs Syphilis (Anti-treponema Pallidum) Antibody Test Cassette, a professional in vitro diagnostic reagent for qualitative detection of TP IgG and IgM antibodies in human whole blood, serum, and plasma, assisting in the clinical auxiliary diagnosis of syphilis.
Product Principle
This test adopts advanced immunochromatography technology with double antigen combination. Recombinant syphilis antigen is immobilized on the test line. The specimen reacts with antigen-coated particles and migrates along the membrane. If TP antibodies exist in the sample, an antigen-antibody complex will form and show a positive colored line. The control line ensures valid test operation.
Core Product Advantages
- • Multi-sample compatibility: Supports whole blood, serum, and plasma samples, meeting various clinical and on-site sampling needs.
- • Fast & efficient detection: Accurate results can be read in 15 minutes, no complex laboratory equipment required.
- • Reliable Detection Performance: Verified by clinical samples with excellent detection accuracy and stable test performance for accurate auxiliary screening.
- • Strong anti-interference: No cross-reactivity with common pathogens such as RSV, adenovirus, HBV, and HCV; not affected by triglyceride, bilirubin, hemoglobin, and other interfering substances.
- • Easy Storage: Stable storage at 4℃-30℃, suitable for various professional screening scenarios.
Standard Test Operation & Result Interpretation
Bring the test kit and specimens to room temperature (15℃-30℃) before testing. Add 1 drop (30μL) specimen and 2 drops (60μL) buffer to the test well. Read results strictly at 15 minutes; results are invalid after 20 minutes.
Positive: Both control line (C) and test line (T) appear; Negative: Only control line (C) appears; Invalid: No control line appears; need to retest with a new cassette.
Important Product Notes
This product is for professional in vitro diagnostic use only. It is a qualitative auxiliary screening tool and cannot be used as the sole basis for clinical diagnosis. All positive results need further laboratory confirmatory testing, and test results should be comprehensively evaluated in combination with clinical symptoms and medical history.
Post time: Sep-11-2026