Interim Estimates of 2019--20 Seasonal Influenza Vaccine Effectiveness --- United States, February 2020

Published on February 20, 2020

During the 2019-20 influenza season, influenza-like illness (ILI)* activity first exceeded the national baseline during the week ending November 9, 2019, signaling the earliest start to the influenza season since the 2009 influenza A(H1N1) pandemic.

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Persons Evaluated for 2019 Novel Coronavirus --- United States, January 2020

February 13, 2020
In December 2019, a cluster of cases of pneumonia emerged in Wuhan City in central China's Hubei Province. Genetic sequencing of isolates obtained from patients with pneumonia identified a novel coronavirus (2019-nCoV) as the etiology (1).

Update: Public Health Response to the Coronavirus Disease 2019 Outbreak - United States, February 24, 2020

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An outbreak of coronavirus disease 2019 (COVID-19) caused by the 2019 novel coronavirus (SARS-CoV-2) began in Wuhan, Hubei Province, China in December 2019, and has spread throughout China and to 31 other countries and territories, including the United States (1).