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. More about reporting anomalies or changesĬanada reported data for multiple days after the Christmas holiday.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. The Times has identified reporting anomalies or methodology changes in the data. Data for Canada comes from the Center for Systems Science and Engineering at Johns Hopkins University.
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