Diagnosing precisely what type of asthma a child has and fine-tuning the treatment for it involves an invasive procedure under general anesthesia. For children with mild asthma, it's just not worth ...

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 ...

Tokyo — Researchers in Japan announced "game changing" research this week that found simple saliva tests for COVID-19 are just as reliable as the widely used, but more complicated and uncomfortable, ...

Asthma comes in different subtypes, but diagnosing those subtypes — also known as endotypes — has historically been difficult. Newly published research in JAMA presents an alternative: a nasal swab ...

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 ...