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 invasive procedures. Results could take days, resulting in increased potential ...

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 ...

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 ...