Medically reviewed by Jordana Haber Hazan, MD Two types of COVID-19 tests, the rapid antigen test and the polymerase chain reaction (PCR) test, are available in the United States. The PCR typically ...

Karius has developed a cell-free-DNA-based diagnostic ... “Our results in septic patients show the Karius test can identify pathogens missed by other microbiology tests and has the potential ...