The Food and Drug Administration’s chief tobacco regulator has been forced out.

The warning letters are not legally binding, but the government can take companies to court if they are ignored. Antibody tests are different from the nasal swab tests used to diagnose most active infections. Antibody tests were initially thought to have a key role in identifying people who have developed some immunity to the virus. And even well-performing antibody tests can sometimes produce more false results than accurate ones. Meanwhile, roughly 190 antibody tests launched under the agencys previous policy are awaiting review.

CNN – The first video game-based treatment for attention deficit hyperactivity disorder (ADHD) has been approved by the US Food and Drug Administration (FDA). The video game, called EndeavorRx and approved on Monday, will be prescription only and aimed at children between the ages of eight and 12 with certain types of ADHD. ADHD is a common neurodevelopmental disorder which is usually first diagnosed in children and can last into adulthood. Approximately 4 million children aged six to 11 are affected by ADHD, the symptoms of which include difficulty staying focused and paying attention and difficulty controlling behavior. While playing the game, children steer an avatar through a course dotted with obstacles, collecting targets to earn rewards.