In the current pandemic scenario, global supplies of nasopharyngeal (NP) swabs are not dependable resulting in supply chain delays, escalating prices and variable quality.
CSIR-National Chemical Laboratory (CSIR-NCL), Pune, has developed an indigenous NP swab for collecting samples from the throat cavity of COVID-19 patients.
What is a nasopharyngeal swab?
- Nasopharyngeal swab is a medical device with stringent specifications of quality, polymer grade, dimensions and sterilisation.
- An NP swab consists of a cylindrical plastic stick with a brush-like tip of synthetic bristles/flocks.
- The flocking process helps align the fine bristles in a parallel orientation on the stick head, much like a tooth brush, except that this has round uniform geometry and the NP swab bristles are of micron diameter.