If You Have Coronavirus Symptoms, Assume You Have the Illness, Even if You Test Negative - The New York Times

What Should You Do If You Feel Sick but Keep Testing Negative for COVID?

If you have COVID-19

If I get COVID on vacation, what should I do and when can I go home? : Goats and Soda : NPR

Metrology, Free Full-Text

Variation in False-Negative Rate of Reverse Transcriptase Polymerase Chain Reaction-Based SARS-CoV-2 Tests by Time Since Exposure. - Abstract - Europe PMC

Do Home Covid Tests Expire? - The New York Times

Covid-19 Can Leave You Infectious After Five or Even 10 Days - WSJ

What a Negative Result Means on At-Home Covid Tests - The New York Times

Symptom Duration and Risk Factors for Delayed Return to Usual Health Among Outpatients with COVID-19 in a Multistate Health Care Systems Network — United States, March–June 2020

Metrology, Free Full-Text

As COVID-19 becomes endemic, we should still take it seriously, CT doctor says