Reports of Lyme Disease in Norfolk County, Massachusetts
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5,330
Confirmed cases of Lyme disease in Norfolk County (2000 to 2020).
Ranked #4 of 14 counties in Massachusetts. That's 10.6% of Massachusetts's 50,332 confirmed cases.
Yearly Breakdown of Lyme Cases in Norfolk County
View as a table
| Year | Confirmed cases |
|---|---|
| 2000 | 80 |
| 2001 | 90 |
| 2002 | 173 |
| 2003 | 151 |
| 2004 | 139 |
| 2005 | 251 |
| 2006 | 176 |
| 2007 | 333 |
| 2008 | 494 |
| 2009 | 549 |
| 2010 | 301 |
| 2011 | 194 |
| 2012 | 554 |
| 2013 | 573 |
| 2014 | 648 |
| 2015 | 534 |
| 2016 | 12 |
| 2017 | 61 |
| 2018 | 0 |
| 2019 | 2 |
| 2020 | 15 |
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Lyme Stats for Other Massachusetts Counties
| County | Confirmed cases | Share of state |
|---|---|---|
| Middlesex County | 8,465 | 16.8% |
| Plymouth County | 6,123 | 12.2% |
| Worcester County | 5,334 | 10.6% |
| Norfolk County | 5,330 | 10.6% |
| Essex County | 4,772 | 9.5% |
| Bristol County | 4,314 | 8.6% |
| Barnstable County | 3,137 | 6.2% |
| Hampden County | 2,264 | 4.5% |
| Berkshire County | 1,515 | 3.0% |
| Hampshire County | 1,317 | 2.6% |
| Suffolk County | 1,184 | 2.4% |
| Dukes County | 819 | 1.6% |
| Nantucket County | 723 | 1.4% |
| Franklin County | 616 | 1.2% |
| Unknown County | 4,419 | 8.8% |
"Unknown County" counts cases the CDC confirmed in Massachusetts without a county of residence. They are included in the state total but not on the map.
Data Sources
All Lyme disease prevalence data sourced from the Centers for Disease Control and Prevention's surveillance data. Cases are counted by the patient's county of residence, which may not be where the tick bite occurred.
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