PRISES 2019-nCoV Antigen Test is a lateral flow assay for self-tested by professional to aid diagnosis of COVID-19 infection with a nasal swab, delivering results in as little as 15 minutes without an instrument. The test can not only provide users high flexibility to use in all types of settings...

Collection of specimens from the surface of the respiratory mucosa with nasopharyngeal swabs is a procedure used for the diagnosis of Covid-19 in adults and children.1-4 The procedure is also commonly used to evaluate patients with suspected respiratory infection caused by other viruses and some bacteria. This video describes the collection of nasopharyngeal specimens for detection of Covid-19, the illness caused by infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).There are no specific contraindications for collecting specimens with nasopharyngeal swabs. However, clinicians should be cautious if the patient has had recent nasal trauma or surgery, has a markedly deviated nasal septum, or has a history of chronically blocked nasal passages or severe coagulopathy.

Flocked tipped nasopharyngeal swab with nylon fiber and aluminum shaft (Lawson# 63252).DO NOT USE wood-shafted or calcium alginate swabs.M6 Viral Transport Media (Lawson# 64758).

In order to meet planetary-protection requirements, culturable bacterial spore loads are measured representatively for the total microbial contamination of spacecraft. However, the National Aeronautics and Space Administration's (NASA's) cotton swab protocols for spore load determination have not changed for decades. To determine whether a more efficient alternative was available, a novel swab was evaluated for recovery of different Bacillus atrophaeus spore concentrations on stainless steel and other surfaces. Two protocols for the nylon-flocked swab (NFS) were validated and compared to the present NASA standard protocol. The results indicate that the novel swab protocols recover 3- to 4-fold more (45.4% and 49.0% recovery efficiency) B. atrophaeus spores than the NASA standard method (13.2%). Moreover, the nylon-flocked-swab protocols were superior in recovery efficiency for spores of seven different Bacillus species, including Bacillus anthracis Sterne (recovery efficiency, 20%). The recovery efficiencies for B. atrophaeus spores from different surfaces showed a variation from 5.9 to 62.0%, depending on the roughness of the surface analyzed. Direct inoculation of the swab resulted in a recovery rate of about 80%, consistent with the results of scanning electron micrographs that allowed detailed comparisons of the two swab types. The results of this investigation will significantly contribute to the cleanliness control of future life detection missions and will provide significant improvement in detection of B. anthracis contamination for law enforcement and security efforts.

A nasopharyngeal swab is a device used for collecting a sample of nasal secretions from the back of the nose and throat.[1][2] The sample is then analyzed for the presence of organisms or other clinical markers for disease. This diagnostic method is commonly used in suspected cases of whooping cough, diphtheria, influenza, and various types of diseases caused by the coronavirus family of viruses, including SARS, MERS, and COVID-19.

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