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(1) Suspected cases: In line with clinical symptoms and blood routine, biochemical and chest imaging features, influenza A virus universal primers are positive and exclude seasonal influenza, which may have epidemiological exposure history.
(2) confirmed cases: in line with the diagnostic criteria for suspected cases, and the H7N9 avian influenza virus or H7N9 avian influenza virus nucleic acid test positive in the respiratory secretion samples. Severe cases: pneumonia with respiratory failure or other organ failure are severe cases.
Differential diagnosis:
Should pay attention to human infection with highly pathogenic H5N1 avian influenza, seasonal influenza (including influenza A (H1N1)), bacterial pneumonia, SARS, new coronavirus pneumonia, adenovirus pneumonia, chlamydia pneumonia, mycoplasma Differential diagnosis of diseases such as pneumonia. Differential diagnosis relies mainly on pathogenic examination.
Human infection with H7N9 avian influenza treatment plan (1st edition, 2013)
On April 3, 2013, the National Health and Family Planning Commission published the “Technical Guidelines for the Prevention and Control of Infection of H7N9 Avian Influenza Hospitals (2013 Edition)†and “Therapeutic Program for Human Infection with H7N9 Avian Influenza (1st Edition, 2013)â€. The program stipulates the method of nucleic acid detection for human infection with the H7N9 avian influenza pathogen detection program:
"Nucleic acid detection. H7N9 avian influenza virus nucleic acid was detected by real-time PCR, or real-time PCR (or RT-PCR), in patients' respiratory specimens (such as nasopharyngeal secretions, oral sputum, tracheal aspirate or respiratory epithelial cells). â€
The program also specifies the diagnosis and differential diagnosis method for human infection with H7N9 avian influenza:
Diagnostic criteria:
Xi'an Tianlong Technology Co., Ltd. has been focusing on the independent research and development, production and sales of nucleic acid detection instruments and diagnostic reagents such as PCR gene amplification instrument, real time PCR instrument and nucleic acid extraction instrument for 15 years. It has been successfully developed with the support of national key science and technology projects. A number of nucleic acid diagnostic products have obtained the clinical diagnostic market access medical device registration certificate, which played an important role in the prevention and control of SARS and H1N1 epidemic in the past. The first case of H1N1 influenza in Shaanxi was detected, and related products were selected as “National Elevenâ€. Five major scientific and technological achievements exhibition." The nucleic acid diagnostic instruments and reagent products produced by the company will play an important role in the prevention, control and diagnosis of human infection with H7N9 avian influenza virus.