Nanjing Leading Medical Technology Co., Ltd.

Home page

Type A influenza is on the rise—this is far more than just a “severe cold”! Liding rapid testing helps you accurately identify the cause.

Type A influenza Incoming ， Not only is “ Severe cold ” ! Liding Quick Test helps you accurately identify the cause. ！

Influenza A(H3N2) has become the dominant strain, Lidingjian Test Kit Supports Precise Disease Prevention and Control ！

At present, China has entered the peak season for respiratory infectious diseases, and the epidemic is generally on the rise, according to… The Chinese Center for Disease Control and Prevention has released nationwide surveillance data on respiratory infectious diseases. Influenza activity has entered a rapid upward phase. and will continue for a certain period of time, Rhinoviruses, respiratory syncytial virus, and enteroviruses also exhibit a certain level of activity.

(Data source: China Center for Disease Control and Prevention – National Sentinel Surveillance of Acute Respiratory Infectious Diseases)

According to China’s influenza surveillance data for Week 46 of 2025, influenza activity has increased in both southern and northern provinces this week. A total of 955 outbreaks of influenza-like illness were reported nationwide. Upon testing, 741 cases were A(H3N2). ， Two cases were A(H1N1)pdm09, 16 were influenza A (subtype not specified), 20 were mixed infections, 38 were negative for influenza, and pathogen test results remain unavailable for 138 cases.

(Data source: China Center for Disease Control and Prevention – Influenza Surveillance Weekly Report)

Surveillance of influenza-like illness revealed that, in the 46th week of 2025, 3,439 influenza virus–positive specimens were detected in southern provinces, among which… 20 samples were A(H1N1)pdm09, 3,362 samples were A(H3N2). , 57 samples were classified as B (Victoria) . In the northern provinces, 3,563 influenza virus–positive specimens were detected, among which 22 samples were A(H1N1)pdm09, 3,535 samples were A(H3N2). , 6 copies are rated B (Victoria) 。

Influenza-like Illness (ILI) Specimen Test Results from Southern Provinces

Influenza-like illness (ILI) specimen test results from northern provinces

(Data source: China Influenza Surveillance Weekly Report, Week 46 of 2025, Issue No. 883)

Note: Influenza-like illness (ILI) refers to cases that meet a specific combination of symptoms but have not been confirmed by laboratory testing. According to China’s Influenza Surveillance Protocol and the World Health Organization (WHO) criteria, ILI is defined as a body temperature ≥38°C, accompanied by cough or sore throat (at least one respiratory symptom), with no other clear etiology (such as bacterial infection or allergy). This definition is primarily used for early monitoring of influenza activity trends and provides guidance for public health prevention and control efforts.

Influenza viruses are classified into four types: A, B, C, and D; among these, What we often say Type A influenza refers to the influenza A virus. . Influenza A is highly pathogenic to humans and has repeatedly caused global pandemics. Among all subtypes of the influenza A virus, only H1N1, H2N2, H3N2 It primarily infects humans, H1N1 and H3N2 are the main influenza A subtypes responsible for seasonal influenza. 。

Type A influenza is more than just a “severe cold”; it can also cause high fever, headache, and fatigue, accompanied by generalized muscle aches.

1. Common cold: Mild local symptoms, rapid self‑resolution, and no risk.

Common cold Low transmissibility , the symptoms manifest as Nasal congestion, runny nose, sneezing, coughing Wait, Typically, there is no fever or only a low-grade fever, and no systemic symptoms are present. 。

2. Influenza A: highly contagious, with severe systemic symptoms and a high risk of complications.

Type A influenza Highly contagious Infection typically manifests as high fever, severe headache, generalized muscle aches, joint pain, and marked fatigue.

Influenza A misdiagnosed as a common cold: Failure to administer antiviral medications promptly can exacerbate symptoms and increase the risk of complications such as pneumonia, with higher risks for high‑risk populations.

A common cold mistaken for influenza A: the overuse of antiviral medications wastes healthcare resources and may lead to adverse side effects.

Diagnostic methods for influenza A virus

“Influenza Diagnosis and Treatment Protocol (202… 5 Year Edition)》

Complete blood count, imaging studies, Virus culture and isolation 、 Viral nucleic acid testing 、 Serological testing 、 Viral antigen testing

Rapid identification, precise diagnosis

Through rapid and accurate test results, achieve “Early identification, early intervention, early control” , to minimize the adverse impacts of influenza A on individual health, public health security, and economic activity.

Leading Medical’s Comprehensive Solution for Influenza A Virus Detection

Influenza A Virus Antigen Detection Kit (Latex Immunochromatographic Assay)

Detection target: Covers the major circulating strains H1N1 and H3N2.

1 sample, 1 test, 15 minutes

The Leading Medical Influenza A Virus Test Kit (Latex Immunochromatographic Assay) was benchmarked against well‑known commercial products available in Thailand, Hong Kong, mainland China, and other regions. The results showed: Lithium chromatography products excel in core performance metrics, particularly sensitivity, outperforming other brands. 。

Influenza A virus third-party quality control material

Independent third-party quality control materials, suitable for various testing platforms, methods, and reagent kits from different manufacturers.

Application scenarios:

Source is clear: Covers standard strains, model strains, and clinical strains.

Complete range of types: H1N1/H3N2/H6N6/H7N8/H9N2

Absolute quantification: TCID50, digital PCR

Stable production process: 2–4°C and good freeze-thaw stability

*Personalized customization services are available upon request.

Leading Medical, as an in vitro diagnostic… A comprehensive solution provider for biochemical and immunological reagents. , always focused Respiratory tract Iterative advancements and optimization of testing technologies deliver a comprehensive portfolio of test products and supporting solutions that meet international certification standards. File (IFU, COA, MSDS), helping global users achieve Respiratory pathogens Accurate diagnosis and scientifically sound prevention and control provide a core safeguard for both public health and economic security.