| Location |
Cohort affected |
Cases, n |
Case-fatality rate, % (n) |
Serogroup |
Year |
Vaccination used as a control measure |
| New York, NY [55-57] |
Men who have sex with men |
22* |
32 (7) |
C |
2010–2013 |
Yes |
| Crook County, OR
[58] |
Aged < 25 y |
6 |
0 (0) |
C |
2011–2012 |
Yes |
| Larimer County, CO [59-61] |
College students and adult hockey team |
9 |
56 (5) |
C |
2010 |
Yes |
| Rogers County, OK [62] |
Elementary school students (aged 6–8 y) plus one high school student |
5 |
40 (2) |
C |
2010 |
Yes |
| Southeastern, FL
[41] |
Aged 1–84 y |
14 |
29 (4) |
W |
2008–2009 |
No† |
| Brooklyn, NY [63] |
Illicit drug users |
23 |
30 (7) |
C |
2005–2006 |
Yes |
| Chicago, IL [64] |
Men who have sex with men |
6 |
50 (3) |
C |
2003 |
Yes |
*A 23rd man from outside NYC who spent significant time in the NYC boroughs also became ill but later recovered
†Broad age range and varied demographics made it difficult to identify whom to vaccinate |
