Patel, Alison Saldanha, Kirk Semple, Shelly Seroussi, Julie Walton Shaver, Amy Schoenfeld Walker, Anjali Singhvi, Charlie Smart, Mitch Smith, Albert Sun, Rumsey Taylor, Lisa Waananen Jones, Derek Watkins, Timothy Williams, Jin Wu and Karen Yourish. Rebecca Lai, Alex Lemonides, Eleanor Lutz, Allison McCann, Richard A. Frequently Asked Questions About the Covid Dataīy Jordan Allen, Sarah Almukhtar, Aliza Aufrichtig, Anne Barnard, Matthew Bloch, Penn Bullock, Sarah Cahalan, Weiyi Cai, Julia Calderone, Keith Collins, Matthew Conlen, Lindsey Cook, Gabriel Gianordoli, Amy Harmon, Rich Harris, Adeel Hassan, Jon Huang, Danya Issawi, Danielle Ivory, K.K.The Times uses an adjustment method to vary the number of days included in an average to remove these irregularities.Įarly Coronavirus Outbreaks Cases in nursing homes, prisons and other places For agencies that do not report data every day, variation in the schedule on which cases or deaths are reported, such as around holidays, can also cause an irregular pattern in averages. The Times is excluding these anomalies from seven-day averages when possible. Governments often revise data or report a single-day large increase in cases or deaths from unspecified days without historical revisions, which can cause an irregular pattern in the daily reported figures. Probable cases and deaths count individuals who meet criteria for other types of testing, symptoms and exposure, as developed by national and local governments. Turkey announced the total number of reported cases, including asymptomatic cases since the end of July, reaching more than 1.7 million cases.Ĭonfirmed cases and deaths, which are widely considered to be an undercount of the true toll, are counts of individuals whose coronavirus infections were confirmed by a molecular laboratory test. Several countries did not publish data on Dec. More about reporting anomalies or changesĬhile added probable Covid-19 deaths from earlier in the pandemic.Įcuador added a backlog of deaths from 2020. The Times has identified reporting anomalies or methodology changes in the data. The New York Times has found that official tallies in more than thirty countries have undercounted deaths during the coronavirus outbreak because of limited testing availability. Data for some countries, like the United States, Denmark, France and the Netherlands, include counts for overseas territories.

Population data from the World Bank and U.S. United States data comes from state and local health officials and is collected by The New York Times.

Data for all countries except the United States comes from the Center for Systems Science and Engineering at Johns Hopkins University.

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