All featured sources are available here.

• Search trends on COVID-19 symptoms: Researchers can now access a Google Search dataset of search trends related to over 400 COVID-19 symptoms and related health conditions, such as fever, cough, and difficulty breathing.
• FAQs on Protecting Yourself from COVID-19 Aerosol Transmission: This pubic document was compiled by a group of scientists and engineers who study aerosol transmission. Answered questions range from “How long can the virus stay in the air indoors?” to “What is the best type of mask?”
• MIT COVID-19 Indoor Safety Guideline: Another air transmission resource allows users to calculate the risk levels for different indoor spaces, based on a model by MIT researchers Martin Bazant and John Bush.
• Open States COVID-19 Legislation: Open States, a public civic engagement project, is compiling a list of legislation related to the COVID-19 pandemic in the U.S. The database currently tracks over 3,000 bills in 46 states.