The Times data includes cases identified through antibody testing announced before Nov. Officials had previously included these cases as probable cases. 7, Puerto Rico updated its case definitions and recategorized thousands of previously announced cases identified through antibody testing as suspected cases. Muncipality-level weekly cases per capita are shown starting in early May, when The Times began gathering the data.That issue had been resolved by early May, officials said. The territorial health department acknowledged in late April that it had been double-counting some patients.From April 19 to April 22, the territory stopped reporting probable deaths, and then continued again on April 23. Puerto Rico started including some probable Covid-19-related deaths.
Puerto Rico revised the number of cases downward after resolving an issue with duplicates. Puerto Rico added a backlog of test results from unspecified days. Puerto Rico changed the format of its data, resulting in one-day adjustments of cases and deaths in some municipalities. Puerto Rico did not announce new cases and deaths on New Year's Day. More about reporting anomalies or changes The Times has identified reporting anomalies or methodology changes in the data. Department of Health and Human Services and are subject to historical revisions. Hospitalizations and test positivity are reported based on dates assigned by the U.S. viral test specimens tested by laboratories and state health departments and reported to the federal government. Hospitalization numbers early in the pandemic are undercounts due to incomplete reporting by hospitals to the federal government. Dips and spikes could be due to inconsistent reporting by hospitals. Figures for Covid patients in hospitals and I.C.U.s are the most recent number of patients with Covid-19 who are hospitalized or in an intensive care unit on that day. Cases and deaths data are assigned to dates based on when figures are publicly reported. The seven-day average is the average of the most recent seven days of data. Department of Health and Human Services (test positivty, hospitalizations, I.C.U. 7 About this data Sources: State and local health agencies (cases, deaths) U.S.