Earliest Coronavirus

First Case of 2019 Novel Coronavirus in the United States, NEJM, 2020-03-05

The proximal origin of SARS-CoV-2, Nature Medicine, 2020-03-17

Coronavirus was circulating in France in December, case report suggests, LiveScience, 2020-05-05

New Report Says Coronavirus May Have Made Early Appearance in France, New York Times, 2020-05-05

Sentinel surveillance of SARS-CoV-2 in wastewater anticipates the occurrence of COVID-19 cases, medRXiv, 2020-06-13

Italy sewage study suggests COVID-19 was there in December 2019, Reuters, 2020-06-19

SARS-CoV-2 has been circulating in northern Italy since December 2019: evidence from environmental monitoring, medRXiv, 2020-06-25

How early was the coronavirus really circulating in Italy?, LiveScience, 2020-11-18

Serologic Testing of US Blood Donations to Identify Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2)–Reactive Antibodies: December 2019–January 2020 , Clinical Infectious Diseases, 2020-11-30

Coronavirus Was In U.S. Weeks Earlier Than Previously Known, Study Says, NPR, 2020-12-01

COVID-19: The first documented coronavirus pandemic in history, Biomedical Journal, 2020-08-04

A Timeline of the Coronavirus Pandemic, New York Times, 2021-01-10

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