The MV Hondius, the cruise ship hit by an outbreak of a virus that has left three dead, reached the Canary Islands on Sunday ...

One of the patients had mild symptoms, while another tested positive. Officials said the test results were inconclusive.

Polymerase chain reaction (PCR) is a fundamental molecular biology tool that scientists use to amplify and analyze genetic material, such as DNA and RNA. PCR involves the enzymatic amplification of ...