ArcGIS Online for MarylandDeprecated as of 12/3/2021. This table will no longer be updated. Summary The 7-day average percent positive rate for COVID-19 tests adminstered among Marylanders under 35 years of age and over 35 years of age. Description Testing volume data represent the static daily total of PCR COVID-19 tests electronically reported for Maryland residents; this count does not include test results submitted by labs and other clinical facilities through non-electronic means. The 7-day percent postive rate is a rolling average of each day's positivity percentage. The percentage is calculated using the total number of tests electronically reported to MDH (by date of report) and the number of positive tests electronically reported to MDH (by date of report). COVID-19 is a disease caused by a respiratory virus first identified in Wuhan, Hubei Province, China in December 2019. COVID-19 is a new virus that hasn't caused illness in humans before. Worldwide, COVID-19 has resulted in thousands of infections, causing illness and in some cases death. Cases have spread to countries throughout the world, with more cases reported daily. The Maryland Department of Health reports daily on COVID-19 cases by county.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/bae03d53b59d4926986217686c547f78_0engMaryland iMapPublicMDCOVID19 TestingVolumePercentPositiveTestingByAgeGroup [Maryland]Web servicesMarylandLast Modified: 2021-12-04