Polymerase chain reaction (PCR) and rapid (antigen) tests for COVID-19 both involve taking a swab. Results for a PCR test take longer, as it needs to go to a laboratory. It is more costly but tends to ...

Testing for tuberculosis has always been a tedious and complex process. For many years, it meant expensive equipment and ...

Not sure what's causing your child's asthma? A new quick-and-easy nasal swab test for kids can diagnose the specific immune system drivers behind their asthma, potentially opening the door to better ...

The first challenge with rapid at-home self tests for COVID-19 is getting one. But once you have a test, there are now growing questions about what body part you should swab to get the most accurate ...

A new, non-invasive nasal swab test for kids that diagnoses specific asthma subtype, or endotype, could help clinicians prescribe medications more precisely and pave the way for research toward better ...