DC Metropolitan Area COVID-19 Analysis

This post updates COVID-19 confirmed case data for the DC Metropolitan area as of April 29th 2020. The total confirmed cases in the DC area rose by 1,052 to  23,280  from  the previous total of 22,228 , an approximate 5% increase. The doubling time (3-day moving average) for cases in the DC area is approximately 13.3 days.  Fatalities rose by 80 to  1,004  from  the previous total of 924 , an approximate 9% increase. The doubling time (3-day moving average) for fatalities in the DC area is approximately 9.5 days. Cases DC Region: 23,280 By State DC Region (23,280) Maryland: 11,334 District of Columbia: 4,323 Virginia: 7,623 By Jurisdiction Maryland (11,334) Frederick County: 893 Montgomery County: 4,152 Prince George's County: 5,738 Charles County: 551 District of Columbia (4,323) Virginia (7,623) Arlington County: 912 City of Alexandria: 700 Fairfax County: 3,501 Loudoun County: 727 Prince William County: 1,783 Fatalities DC Re

This post updates COVID-19 confirmed case data for the DC Metropolitan area as of April 28th 2020. The total confirmed cases in the DC area rose by 1,020 to  22,228  from  the previous total of 21,208 , an approximate 5% increase. The doubling time (3-day moving average) for cases in the DC area is approximately 15.9 days.  Fatalities rose by 53 to  924  from  the previous total of 871 , an approximate 6% increase. The doubling time (3-day moving average) for fatalities in the DC area is approximately 13.5 days. Cases DC Region: 22,228 By State DC Region (22,228) Maryland: 10,908 District of Columbia: 4,106 Virginia: 7,214 By Jurisdiction Maryland (10,908) Frederick County: 870 Montgomery County: 4,003 Prince George's County: 5,496 Charles County: 539 District of Columbia (4,106) Virginia (7,214) Arlington County: 865 City of Alexandria: 653 Fairfax County: 3,331 Loudoun County: 688 Prince William County: 1,677 Fatalities DC Re

This post updates COVID-19 confirmed case data for the DC Metropolitan area as of April 27th 2020. The total confirmed cases in the DC area rose by 897 to  21,208  from  the previous total of 20,311 , an approximate 4% increase. The doubling time (3-day moving average) for cases in the DC area is approximately 14.4 days.  Fatalities rose by 69 to  871  from  the previous total of 802 , an approximate 9% increase. The doubling time (3-day moving average) for fatalities in the DC area is approximately 12.2 days. Cases DC Region: 21,208 By State DC Region (21,208) Maryland: 10,500 District of Columbia: 3,994 Virginia: 6,714 By Jurisdiction Maryland (10,500) Frederick County: 865 Montgomery County: 3,843 Prince George's County: 5,263 Charles County: 529 District of Columbia (3,994) Virginia (6,714) Arlington County: 836 City of Alexandria: 627 Fairfax County: 3,055 Loudoun County: 628 Prince William County: 1,568 Fatalities DC Regi

This post updates COVID-19 confirmed case data for the DC Metropolitan area as of April 26th 2020. The total confirmed cases in the DC area rose by 813 to  20,311  from  the previous total of 19,498 , an approximate 4% increase. The doubling time (3-day moving average) for cases in the DC area is approximately 12.9 days.  Fatalities rose by 27 to 802  from  the previous total of 775 , an approximate 3% increase. The doubling time (3-day moving average) for fatalities in the DC area is approximately 12.4 days. Note: At the repeated request of one of my long-time readers, I have added charts showing the daily increases in new cases and fatalities, as well as the cumulative figures which I have been using up to this point. Please remember to take note of the respective scales on the Y-axes on the charts when looking at them, as they are all scaled differently due to different magnitudes. Cases DC Region: 20,311 By State DC Region (20,311) Maryland: 9,970 District of Columbia

Earlier this month, I had written a post in which I made the case that the DC region was hitting its peak of new COVID-19 cases, specifically on the dates of 10 and 11 April 2020. While I stand by the methodology which I employed in making that post, the recent data has clearly indicated that DC region indeed did not hit a peak at that time (or it did hit a peak, but it was only momentary and ultimately moot). For about a week after the alleged peak, new cases were coming in around 800 per day, which I considered might be constituting a plateau. However in the past few days, new cases have risen above 900, then 1,000, and now over 1,200. I'm leery of offering detailed speculation as to why we have witnessed the recent rise in new daily cases, because to do that would require me to get into epidemiological explanations which I'm not qualified to offer; even in the aforementioned blog post discussing the possible regional peak, I was getting a bit outside of my comfort zo

This post updates COVID-19 confirmed case data for the DC Metropolitan area as of April 25th 2020. The total confirmed cases in the DC area rose by 1,272 to  19,498  from  the previous total of 18,266 , an approximate 7% increase. The doubling time (3-day moving average) for cases in the DC area is approximately 11.2 days.  This is now the third straight day of a notable increase in the total amount of new cases, and it has become abundantly clear that the DC region did not probably hit a peak earlier in April, as a previous blog post of mine suggested . I will be working on a follow-up post to that later today. Fatalities rose by 65 to  775  from  the previous total of 710 , an approximate 9% increase. The doubling time (3-day moving average) for fatalities in the DC area is approximately 7.9 days. Cases DC Region: 19,498 By State DC Region (19,498) Maryland: 9,575 District of Columbia: 3,841 Virginia: 6,082 By Jurisdiction Maryland (9,575) Frederick County: 814 Mo

This post updates COVID-19 confirmed case data for the DC Metropolitan area as of April 24th 2020. The total confirmed cases in the DC area rose by 1,064 to 18,266  from  the previous total of 17,162 , an approximate 6% increase. The doubling time (3-day moving average) for cases in the DC area is approximately 12.6 days.  Fatalities rose by 52 to  710  from  the previous total of 658 , an approximate 8% increase. The doubling time (3-day moving average) for fatalities in the DC area is approximately 7.7 days. Cases DC Region: 18,266 By State DC Region (18,266) Maryland: 8,854 District of Columbia: 3,699 Virginia: 5,673 By Jurisdiction Maryland (8,854) Frederick County: 765 Montgomery County: 3,227 Prince George's County: 4,403 Charles County: 459 District of Columbia (3,699) Virginia (5,673) Arlington County: 722 City of Alexandria: 547 Fairfax County: 2,584 Loudoun County: 529 Prince William County: 1,291 Fatalities DC Region: 710

This post updates COVID-19 confirmed case data for the DC Metropolitan area as of April 23rd 2020. The total confirmed cases in the DC area rose by 980 to  17,162  from  the previous total of 16,182 , an approximate 6% increase. The doubling time (3-day moving average) for cases in the DC area is approximately 13.5 days.  Fatalities rose by 65 to  658  from  the previous total of 593 , an approximate 11% increase. The doubling time (3-day moving average) for fatalities in the DC area is approximately 7.3 days. Cases DC Region: 17,162 By State DC Region (17,162) Maryland: 8,333 District of Columbia: 3,528 Virginia: 5,301 By Jurisdiction Maryland (8,333) Frederick County: 690 Montgomery County: 3,060 Prince George's County: 4,141 Charles County: 442 District of Columbia (3,528) Virginia (5,301) Arlington County: 686 City of Alexandria: 512 Fairfax County: 2,413 Loudoun County: 498 Prince William County: 1,192   Fatalities DC Regi

This post updates COVID-19 confirmed case data for the DC Metropolitan area as of April 22nd 2020. The total confirmed cases in the DC area rose by 755 to  16,182  from  the previous total of 15,427 , an approximate 5% increase. The doubling time (3-day moving average) for cases in the DC area is approximately 13.3 days.  Fatalities rose by 53 to 593  from  the previous total of 540 , an approximate 10% increase. The doubling time (3-day moving average) for fatalities in the DC area is approximately 7.6 days. Cases DC Region: 16,182 By State DC Region (16,182) Maryland: 7,828 District of Columbia: 3,361 Virginia: 4,993 By Jurisdiction Maryland (7,828) Frederick County: 658 Montgomery County: 2,868 Prince George's County: 3,875 Charles County: 427 District of Columbia (3,361) Virginia (4,993) Arlington County: 663 City of Alexandria: 474 Fairfax County: 2,306 Loudoun County: 475 Prince William County: 1,075 Fatalities DC Region: 593

This post updates COVID-19 confirmed case data for the DC Metropolitan area as of April 21st 2020. The total confirmed cases in the DC area rose by 742 to  15,427  from  the previous total of 14,685 , an approximate 5% increase. The doubling time (3-day moving average) for cases in the DC area is approximately 12.1 days.  Fatalities rose by 46 to  540  from  the previous total of 494 , an approximate 9% increase. The doubling time (3-day moving average) for fatalities in the DC area is approximately 7.8 days. Cases DC Region: 15,427 By State DC Region (15,427) Maryland: 7,535 District of Columbia: 3,206 Virginia: 4,686 By Jurisdiction Maryland (7,535) Frederick County: 632 Montgomery County: 2,768 Prince George's County: 3,734 Charles County: 401 District of Columbia (3,206) Virginia (4,686) Arlington County: 625 City of Alexandria: 462 Fairfax County: 2,123 Loudoun County: 468 Prince William County: 1,008 Fatalities DC Region: 540

This post updates COVID-19 confirmed case data for the DC Metropolitan area as of April 20th 2020. The total confirmed cases in the DC area rose by 882 to  14,685,  from  the previous total of 12,987 , an approximate 6% increase. The doubling time (3-day moving average) for cases in the DC area is approximately 11.1 days.  Fatalities rose by 43 to 494 , from  the previous total of 451 , an approximate 10% increase. The doubling time (3-day moving average) for fatalities in the DC area is approximately 7.9 days. Cases DC Region: 14,685 By State DC Region (14,685) Maryland: 7,238 District of Columbia: 3,098 Virginia: 4,349 By Jurisdiction Maryland (7,238) Frederick County: 616 Montgomery County: 2,647 Prince George's County: 3,583 Charles County: 392 District of Columbia (3,098) Virginia (4,349) Arlington County: 593 City of Alexandria: 421 Fairfax County: 1,970 Loudoun County: 446 Prince William County: 919 Fatalities DC Region:

This post updates COVID-19 confirmed case data for the DC Metropolitan area as of April 19th 2020. The total confirmed cases in the DC area rose by 816 to  13,803  from  the previous total of 12,987 , an approximate 6% increase. The doubling time (3-day moving average) for cases in the DC area is approximately 10.5 days.  Fatalities rose by 38 to  451,  from  the previous total of 413 , an approximate 9% increase. The doubling time (3-day moving average) for fatalities in the DC area is approximately 7.9 days. Cases DC Region: 13,803 By State DC Region (13,803) Maryland: 6,813 District of Columbia: 2,927 Virginia: 4,063 By Jurisdiction Maryland (6,813) Frederick County: 591 Montgomery County: 2,507 Prince George's County: 3,345 Charles County: 370 District of Columbia (2,927) Virginia (4,063) Arlington County: 575 City of Alexandria: 383 Fairfax County: 1,820 Loudoun County: 425 Prince William County: 860 Fatalities DC Region: 451

This post updates COVID-19 confirmed case data for the DC Metropolitan area as of April 18th 2020. The total confirmed cases in the DC area rose by 807 to  12,987  from  the previous total of 12,180 * , an approximate 7% increase. The doubling time (3-day moving average) for cases in the DC area is approximately 9.8 days.  Fatalities rose by 34 to  413 , from  the previous total of 379 , an approximate 9% increase. The doubling time (3-day moving average) for fatalities in the DC area is approximately 8.0 days. *Note: Due to a transcription error on my error on my part, the initially-reported datum for new cases in the DC area was incorrect for April 17th. That post will be revised, including with a new graphic. Cases DC Region: 12,987 By State DC Region (12,987) Maryland: 6,468 District of Columbia: 2,793 Virginia: 3,726 By Jurisdiction Maryland (6,468) Frederick County: 557 Montgomery County: 2,404 Prince George's County: 3,160 Charles County: 347 District