Vaginitis is an irritation of the vulva or vagina. It is very common. Many women think any irritation of the vagina or vulva is caused by a yeast infection. Yeast infection is one cause of vaginitis.
The ARIESÂ® Group A Strep Assay is a real-time polymerase chain reaction (PCR) based qualitative in vitro diagnostic test for the direct detection of Streptococcus pyogenes (Group A Î²-hemolytic Streptococcus) in throat swab specimens from patients with signs and symptoms of pharyngitis.
PCR. PCR (short for Polymerase Chain Reaction) is a relatively simple and inexpensive tool that you can use to focus in on a segment of DNA and copy it billions of times over.rimers are short pieces of DNA that are made in a laboratory. Since they're custom built, primers can have any sequence of nucleotides you'd like. In a PCR experiment, two primers are designed to match to the segment of DNA you want to copy.