When interpreting COVID-19 antibody tests, caution is key. Here, experts explain the best way to use the tests and why false positives are so concerning.

Phosphate buffered saline could carry COVID-19 testing samples safely. That could fix a testing bottleneck due to viral transport medium shortages.

Nearly all people hospitalized with COVID-19 develop antibodies against the virus within six days of testing positive, new research indicates.

A proposed platform uses nanoparticles or magnetic levitation to spot a "fingerprint" for COVID-19 diagnosis and checking death risk.

A new way to make reagents for COVID-19 testing could boost our capacity for testing and make producing future tests easier.

A biomarker in newborns may signal autism spectrum disorder months or even years before symptoms begin, say researchers.

Researchers make the case for a saliva test for COVID-19, rather than the nasal swabs currently in use.

A new COVID-19 test could be a lot simpler. “The idea is to have a paper-based system where people can just look at it and say, yes, you have it, or not.”

In addition to testing and special facilities for COVID-19 patients, the country's government-run tracking system allows the health care system to identify infected people and their contacts.