The COVID-19 pandemic led to many changes. Among them is universal familiarity with a molecular diagnostic technique that was largely unknown outside clinical use. The polymerase chain reaction — or ...

Early in the pandemic, when someone walked into a clinic with a possible case of COVID-19, a nurse or doctor would stick a long swab up their nose to take a sample. They would then ship it to a ...

Conservation levels of gene expression abundance ratios are globally coordinated in cells, and cellular state changes under such biologically relevant stoichiometric constraints are readable as ...

Liver scarring can pave the way to cancer down the line. A new blood test in development might help doctors spot it.