From hospitals and college campuses to remote villages in French Guiana, scientists have pit the two approaches against one other. See which one comes out ahead.

The school requires each student, faculty, and staff member to be tested twice per week and sends the results straight to their cell phones.

SalivaDirect, an open-source protocol, avoids many of the supply bottlenecks of other tools and could be offered for as little as $10 a test.

Universities and healthcare facilities are planning to use spit tests to conduct large-scale screening.

The search for SARS-CoV-2 RNA in 60 saliva samples yielded the same results as conventional nasal swab tests taken from the same patients.