Below are charts from March 23 to March 29, 2020. See charts from the current week.
![Maryland: COVID-19 Total Cases - By County](https://www.wrgross.com/wp-content/uploads/COVID-19_MD_ByCnt_20200323-20200329.png)
On 3/27/2020, Charles, Frederick, Harford counties crossed the 15 case threshold, as did Carroll county on 3/29. As of 3/29/2020, Allegany and Dorchester remain the only counties in Maryland with no reported confirmed cases.
![DMV Region: COVID-19 Total Cases - By Locale](https://www.wrgross.com/wp-content/uploads/COVID-19_RG_ByLoc_20200323-20200329.png)
The above chart covers the Washington DC, Maryland, and Virginia region (the DMV). Specifically, it includes Washington DC and the Maryland and Virginia counties that are within a reasonable commuting radius of the city.
![Maryland: COVID-19 Total Cases - By Age Range](https://www.wrgross.com/wp-content/uploads/COVID-19_MD_ByAge_20200322-20200326.png)
Maryland changed the way they provided case data by age range on 3/27. I’ll post a chart reflecting new data beginning Monday, 3/30/2020.
![Maryland: COVID-19 Total Cases](https://www.wrgross.com/wp-content/uploads/COVID-19_MD_Aggre_20200323-20200329.png)
![US: COVID-19 Total Cases](https://www.wrgross.com/wp-content/uploads/COVID-19_US_Aggre_20200323-20200329.png)
![DMV Region: COVID-19 New Cases - By Locale](https://www.wrgross.com/wp-content/uploads/COVID-19_RG_NewByLoc_20200323-20200329.png)
![Maryland: COVID-19 New Cases - By Age Range](https://www.wrgross.com/wp-content/uploads/COVID-19_MD_NewByAge_20200317-20200326.png)
Maryland changed the way they provided case data by age range on 3/27. I’ll post a chart reflecting new data beginning Monday, 3/30/2020.
![Maryland: COVID-19 New Cases](https://www.wrgross.com/wp-content/uploads/COVID-19_MD_NewAggre_20200317-20200329.png)
![US: COVID-19 New Cases](https://www.wrgross.com/wp-content/uploads/COVID-19_US_NewAggre_20200324-20200329.png)
Data sources for the charts above:
- Maryland Data: https://coronavirus.maryland.gov/
- Virginia Data: http://www.vdh.virginia.gov/coronavirus/
- US and DC Data: https://coronavirus.jhu.edu/map.html
- Coronavirus COVID-19 Global Cases by the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University(JHU)