Spain's Fernando Verdasco questioned the French Open's COVID-19 testing protocols on Friday after having to withdraw from the tournament due to a positive result, which he deemed was false.

Tesla Inc Chief Executive Officer Elon Musk questioned the accuracy of COVID-19 tests on Thursday after claiming that results showed he tested positive twice and then negative twice all on the same ...

Baystreet.ca News Commentary – Major biotechnology companies are presenting multi-cancer detection data and breakthrough clinical results at the European Society for Medical Oncology ...

A false negative on a pregnancy test means the test says you're not pregnant when you actually are. Here's how it could happen to you.