Lyme Disease Charts and Figures: Historical Data
Age Group | Male | Female |
---|---|---|
0-4 | 10,611 | 9,555 |
5-9 | 25,287 | 17,199 |
10-14 | 23,384 | 12,213 |
15-19 | 15,675 | 8,269 |
20-24 | 10,290 | 6,470 |
25-29 | 9,293 | 6,453 |
30-34 | 10,275 | 7,972 |
35-39 | 12,388 | 9,994 |
40-44 | 14,929 | 12,080 |
45-49 | 17,763 | 14,325 |
50-54 | 19,606 | 16,815 |
55-59 | 19,125 | 16,959 |
60-64 | 16,669 | 14,824 |
65-69 | 13,855 | 12,578 |
70-74 | 9,982 | 9,520 |
75-79 | 6,675 | 6,821 |
80-84 | 3,628 | 3,877 |
85-89 | 1,495 | 1,746 |
90+ | 443 | 568 |
*Data on signs/symptoms available for only 62% of 311,561 confirmed cases. Due to the way surveillance data is collected, patients with severe symptoms or later manifestations may be more likely be included in the above figure, and percentages presented may be higher than what is typically seen in a “real world” setting.
Year | Confirmed Cases | Probable Cases |
---|---|---|
1996 | 16,455 | — |
1997 | 12,801 | — |
1998 | 16,802 | — |
1999 | 16,273 | — |
2000 | 17,730 | — |
2001 | 17,029 | — |
2002 | 23,763 | — |
2003 | 21,273 | — |
2004 | 19,804 | — |
2005 | 23,305 | — |
2006 | 19,931 | — |
2007 | 27,444 | — |
2008 | 28,921 | 6,277 |
2009 | 29,959 | 8,509 |
2010 | 22,561 | 7,597 |
2011 | 24,364 | 8,733 |
2012 | 22,014 | 8,817 |
2013 | 27,203 | 9,104 |
2014 | 25,359 | 8,102 |
2015 | 28,453 | 9,616 |
2016 | 26,203 | 10,226 |
2017 | 29,513 | 13,230 |
2018 | 23,558 | 10,108 |
2019 | 23,453 | 11,492 |
*National Surveillance case definition revised in 2008 to include probable cases.
Page last reviewed: May 3, 2021