False negatives complicate virus testing
The majority of tests around the world use a technology called PCR, which detects pieces of the virus in mucus samples
As Coronavirus tests become more widely available across the US, scientists have warned about a growing concern: Many people with negative results might actually have the virus.
The majority of tests around the world use a technology called PCR, which detects pieces of the virus in mucus samples. But "there are a lot of things that impact whether or not the test actually picks up the virus," Priya Sampathkumar, an infectious diseases specialist at Mayo Clinic in Minnesota, said.
"It depends on how much virus the person is shedding, how the test was collected and whether it was done appropriately by someone used to collecting these swabs, and then how long it sat in transport." Different companies around the world are now producing different tests, so it's hard to have a precise overall figure.
Mid-Day is now on Telegram. Click here to join our channel (@middayinfomedialtd) and stay updated with the latest news
This story has been sourced from a third party syndicated feed, agencies. Mid-day accepts no responsibility or liability for its dependability, trustworthiness, reliability and data of the text. Mid-day management/mid-day.com reserves the sole right to alter, delete or remove (without notice) the content in its absolute discretion for any reason whatsoever
Sign up for all the latest news, top galleries and trending videos from Mid-day.comSubscribe