The study of Geography and the use of its most prominent tool – mapping — has been invaluable in the research into epidemics. Dr. John Snow’s map of the 1854 cholera outbreak in London is widely credited with making the first inroads for germ theory. (https://www.arcgis.com/apps/PublicInformation/index.html?appid=d7deb67f810d46dfacb80ff80ac224e9)
In the current corona virus pandemic, there are data available to the public about testing, infections, and deaths. While the Centers for Disease Control (CDC) has data about positive tests at the state level (https://www.cdc.gov/coronavirus/2019-ncov/cases-updates/cases-in-us.html), other credible sources such as the New York Times have county-level data that include numbers of deaths (https://www.nytimes.com/interactive/2020/us/coronavirus-us-cases.html#g-cases-by-county). The COVID Tracking Project (https://covidtracking.com/data/) has data on total tests administered as well as the number of positive tests.
I have used these data along with information from the US Census Bureau (www.census.gov) to map various aspects of the corona virus. I have used Microsoft Excel to process the data and a simple on-line mapping program (mapchart.net) to visualize it.
I will make an effort to post a new or different map every few days. Data change daily. Because of this, categories will most likely change as well and so comparison to past maps may not be fruitful.
Anita Peterson has a background in Geography with degrees from the University of Nevada and the University of Wisconsin. She has lived in several western states and she and her family now call Lodi home.