JHU has stopped collecting data as of
After three years of around-the-clock tracking of COVID-19 data from...
Data Notes
General Notes
September 14, 2021
Reduced counts in U.S. cases and deaths are the result of states and territories not reporting the information for some or all of the weekend. Those states and territories are: Alaska, Colorado, Connecticut, District of Columbia, Florida, Georgia, Guam, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Massachusetts, Michigan, Minnesota, Mississippi, Montana, Nebraska, Nevada, New Hampshire, New Mexico, North Carolina, Northern Mariana Islands, Oklahoma, Rhode Island, South Carolina, South Dakota, Tennessee, Utah, U.S. Virgin Islands, Virginia, Washington, West Virginia, Wisconsin, and Wyoming. Typically, these states" Monday updates include the weekend totals.
Region Notes
Choose a World Country or U.S. State
May 13, 2022
Maryland
On May 12, 2022, Maryland posted 350 deaths for Dorchester County, and laterr corrected to 107 deaths. This caused a drop of 243 deaths.
April 8, 2022
Maryland
As of April 3, 2022, Maryland changed to once per week reporting (Fridays).
February 22, 2022
Maryland
On February 16, 2022, Maryland pushed reinfection data to their dashboard for the first time, resulting in a large spike in cases. Source: https://www.baltimoresun.com/coronavirus/bs-hs-thousands-reinfected-with-covid-20220216-rdb6varbwjhfhobf63tmrrcnny-story.html
As of February 18, 2022, the reinfection data was back distributed, correcting the spike. Of note, all reported reinfections have occurred since December 15, 2021.
January 5, 2022
Maryland
On December 28, 2021, Maryland reintroduced death data into its dataset. The reintroduction, without available metadata for a back distribution, have resulted in a spike of 417 deaths on that date.
December 20, 2021
Maryland
On December 20, 2021, Maryland began reporting case, deaths, and testing data again. Per the Maryland Department of Health website: As of 12/20/2021, 90 percent of state-level surveillance data for confirmed cases, persons tested negative, testing volume and positivity rate are restored. MDH continues to work to reinstate the full COVID-19 dataset and will resume reporting more surveillance information—including deaths and numbers by jurisdiction—as soon as possible.
December 15, 2021
Maryland
On December 5, 2021, Maryland's health department was struck by a cyberattack. This has resulted in a cessation of reporting on cases, deaths, and testing. Hospitalization and vaccine data continue to be updated.
December 1, 2021
Maryland
On Nov. 3, 2021, Maryland updated vaccination data submitted to the CDC that resulted in a decrease of 5,975 doses administered.