The culture of normal human pharyngeal isthmus should have normal oral flora without pathogenic bacteria. The bacteria in the pharynx come from the outside and are not pathogenic under normal circumstances, but they can cause diseases due to the decline of systemic or local resistance and other external factors.

There are several conventional sampling methodsa) Nasal swab: gently insert the swab head into the nasal palate in the nasal canal, stay for a moment, and then slowly rotate the line to exit.

Nasal swab samples' intended useIt is used for the collection and transportation of clinical influenza, avian influenza, hand, foot and mouth disease, measles and other virus samples, as well as chlamydia, mycoplasma and Ureaplasma samples.

Alat rapid antigen: know nucleic acid detectionReal time fluorescence quantitative PCRReal time fluorescence quantitative PCR technology refers to the method of adding fluorescent groups to the PCR reaction system, using fluorescent signals to monitor the whole PCR process in real time.

Alat rapid antigen: basic knowledge of nucleic acid detection1. What is nucleic acid detectionDefinition of nucleic acid: nucleic acid is a kind of biological macromolecules connected by nucleotides or deoxynucleotides through 3 ', 5' - phosphate diester bond.

Sample tube: it shall be a plastic tube with a length of about 10cm, a diameter of about 1.5-2CM, a capacity of 10ml and a nozzleWith spiral wire and air cushion ring in the pipe cover.Swab: a swab with a polypropylene rod with a sterile polypropylene fiber head or absorbent cotton head.

Alat swab test antigen: many countries around the world are worried about the arrival of a new peak of the epidemicRecently, due to the accelerated spread of multiple subtypes of Omicron strains, the world is facing the threat of a new round of epidemic peaks.

On March 28, the Ministry of Health announced that New Zealand had recorded 12,882 new community cases and 11 deaths. Another outbreak center is forming, New Zealand has now confirmed 609,327 cases, with 112,701 active cases.

Biocredit swab antigen: New Zealand will adjust epidemic prevention measures According to statistics from Johns Hopkins University in the United States, as of 14:15 on the 21st, Beijing time, there were 470,740,762 confirmed cases and 6,077,597 deaths worldwide.

Rapid influenza a ag: WHO warns of European risks and medical opportunitiesThe current global epidemic situation is more severe!Over the past week, Europe has recorded more than 5.1 million new infections and 12,496 new deaths.