Editor's note: Find the latest COVID-19 news and guidance in Medscape's Coronavirus Resource Center.
This article was co-published with The Nevada Independent and Block Club Chicago.
Last winter's sports season had just begun, and the epidemiology staff at Nevada's second-largest health district were busy calling the parents of high school athletes who'd tested positive for COVID-19.
A state mandate required unvaccinated or traveling athletes to get tested weekly. A nasal swab for an on-site antigen test produced rapid results in 15 minutes; a second swab was sent to an out-of-state laboratory for a more sensitive PCR test. Parents of students who tested positive on the rapid tests would get phone calls from the health district.
Because families already knew about positive rapid results, the phone calls should have been a routine follow-up to start tracking anyone who had had contact with the infected person. But for some reason, parents were repeatedly disputing that their children had the virus.
"These parents were pretty adamant that their kid was not a case and that they could play," said Heather Kerwin, epidemiology program manager for the Washoe County Health District.
A pattern emerged. Athletes would test positive on the rapid test. But before a contact tracer could call, parents would learn from the testing company that their children's PCR tests, typically the gold standard of COVID-19 testing, were negative, even for students with symptoms.
