“Infectious diseases don’t respect borders,” says Khoa Thai, a clinical microbiologist at the Star-shl medical diagnostics laboratory in the Netherlands. To limit their spread, we need a globally ...

Ducharme is a contributor to TIME. Hand holds a test cartridge at home. COVID-19 Ag rapid self test kits on bed at home in quarantine. Antigen or Antibody test. Virus disease healthcare check.

Over the past four years, many of us have become accustomed to a swab up the nose to test for COVID-19, using at-home rapid antigen tests or the more accurate clinic-provided PCR tests with a longer ...