This is an update of a previous map.

The Anne Arundel County Public School System updated its COVID data dashboard today. It reflects cases where contract tracing has been completed and data fully entered as of noon on September 20, 2021. IT does not include cases in which tracing, documentation, or determination are still in progress. The data dashboard was due to be updated on Wednesday, September 22, 201, but they decided to update it early.

According to the data dashboard, 1,092 students and 21 staff are currently quarantine. There are 170 students and 14 staff with active cases. The cases are as distributed as follows: 9 student cases at charter/contract schools; 76 student cases at elementary schools; 33 cases at middle schools; 51 cases at high schools; and 1 case at a specialty center.

Chorpleth map of Act COVID-19 cases in Anne Arundel County PUblic SChools

The map shows the active COVID-19 case in Anne Arundel County Public Schools by feeder system as of noon on September 20, 2021. The map includes student and staff active cases. According to the map the feeder system with the most active case, 24 is the North County High School feeder system: 3 high school cases; 4 middle school cases; and 15 elementary school cases. The feeder system with the least active cases is the South River High School feeder system: 1 high school case and 4 elementary school cases. This is an update of a previous map.

I decided to see if I could make the Anne Arundel County Public School COVID-19 table I published yesterday a more usable table by eliminating schools with no active cases. I think it is prettier, but it might be less useful for people searching for their particular school.

Test of feeder system table.

I used the feeder systems as reported by the Anne Arundel County Public Schools in the Educational Facilities Master Plan to build this map of cases by feeder system. The map only reflects schools that are part of a location-based feeder system in Anne Arundel County Public Schools. Not all schools had completed contract tracing for the reporting period; thus, there may be additional cases not captured in this data set. This is a proof of concept map. In the future, I would like to add detailed information about all schools in that cluster to the map, but that will take additional time.

Please see the data notes from the elementary cases post.

Please see the data notes from the elementary cases post.

I am aware that George Fox Middle School has been renamed Northeastern Middle School, but I am not sure how to change the name in the shapefile. I will need to figure it out in the future. Schools without a physical district are not included.

This map should be taken with a grain of salt. It is primarily a learning activity for me.

How I made this map

  1. Downloaded Anne Arundel Elementary School District Shapefile from Anne Arundel County Open Data website.
  2. Uploaded Files to MapShaper. Used MapShaper tools to simplify school districts so they will load faster. Exact boarders are not important for this map. Downloaded simplified Anne Arundel County Public Schools elemenary school districts.
  3. Uploaded simplified shapefile to Datawrapper. As a new choropleth map.
  4. Added data about Anne Arundel County Public School elementary school cases as of September 14, 2021 and reported on their data dashbaord. Not all elementary school districts had data listed. I entered no data went data was not reported. This results in a grayed out section of map. The “tooltips” do not work for these sectors. Alteratively I could enter “N/A” however when I tried that solutuion the areas ended up colored.
  5. Adjusted visualization on Datawrapper. Published map. Embeded map on this website.

Total Reported PubliC Elementary School Cases

Total cases represents active student and teacher/staff cases as of September 14, 2021.

Data NoTeS

These notes are taken from the Anne Arundel County Public Schools data dashboard.

1. The tables on this page reflect positive cases, confirmed by testing, with an onset date of September 8, 2021, or later that have been made known to Anne Arundel County Public Schools. Schools/Offices with zero student or staff cases do not appear in the tables. The data also includes cases of COVID-like symptoms in which a  person is not tested for a period of 48 hours after onset of symptoms, and probable cases, which occur when an individual with a COVID-like symptoms is found to have close contact with someone who is COVID-19 positive. Such cases are treated as if they are positive for COVID-19 in terms of identification of close contacts and potential exposures. Cases that appear on this dashboard and are later determined to be false positives or the like will be deleted in subsequent updates.

2. An “active case” is one in which the individual who tested positive is still under 10-day quarantine.

3. A positive case, COVID-like symptoms case, or probable case does not mean the individual exposed others at school or work, or that the individual contracted the virus at school or work.

4. Students enrolled in virtual-only learning and who are not part of any extracurricular activities are not included in this data.

5. Due to differences in reporting methodology, this information may not match the data presented by the Maryland Department of Health.

Anne Arundel County County Public Schools published data today regarding COVID cases in public schools. Their reporting metrics are different than those reported by the State. I decided to map and publish it. I have not yet checked the data. I need to publish the data to check it.

Default Dot Size

Smallest Dot Size

After playing with the map a bit I decided that the dots were rather overwhelming, so I shrunk them to their smallest possible size. The dots size for the other maps was the default size. I will need to remember to consider dot size in the future.

Notes

These notes are from Anne Arundel County

1. The tables on this page reflect positive cases, confirmed by testing, with an onset date of September 8, 2021, or later that have been made known to Anne Arundel County      Public Schools. Schools/Offices with zero student or staff cases do not appear in the tables. The data also includes cases of COVID-like symptoms in which a      person is not tested for a period of 48 hours after onset of symptoms, and probable cases, which occur when an individual with COVID-like symptoms is found to have close contact with someone who is COVID-19 positive. Such cases are treated as if they are positive for COVID-19 in terms of identification of close contacts and potential exposures. Cases that appear on this dashboard and are later determined to be false positives or the like will be deleted in subsequent updates.

2. An “active case” is one in which the individual who tested positive is still under 10-day quarantine.

3. A positive case, COVID-like symptoms case, or probable case does not mean the individual exposed others at school or work, or that the individual contracted the virus at school or work.

4. Students enrolled in virtual-only learning and who are not part of any extracurricular activities are not included in this data.

5. Due to differences in reporting methodology, this information may not match the data presented by the Maryland Department of Health.

The Anne Arundel County Public Schools data will be updated each Wednesday.

Out of curiosity, I updated the school outbreak-associated cases map to reflect the data as reported by the Maryland Health Department on September 15, 2021.

Update

After my experiment using smaller dot sizes, I updated this map to also have the smallest dot sizes. I think it is easier to read.