The closed-off NBA bubble is dedicated to basketball, but it’s also a makeshift COVID-19 research laboratory. The league is helping trial a saliva-based COVID-19 test, and any players who opt in will help the Yale School of Public Health validate their testing method. Players in Orlando will be tested almost every day using the typical method: having a swab shoved deep inside their nose. Players who enroll in the Yale study, though, will also give a saliva sample along with each test. The team will compare the two types of tests and check if the saliva test is as accurate as the nose and throat swab.