Table 1.
Distribution of confirmed invasive meningococcal capsular groups and deaths by age and year in Malta (2000–2017)
| Year | Age/years | Capsular Group | |||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| < 1 | 1–5 | 6–10 | 11–15 | 16–20 | 21–25 | 26–45 | 46–64 | > 65 | Total | B | C | W | Y | NG | NI | ||||||||||
| 2000 | 1 | B | 7 | 7B | 1 | B | 2 | B, C | 0 | 0 | 0 | 0 | 1 | B | 1 | B | 0 | 0 | 13 | 12 | 1 | 0 | 0 | 0 | 0 |
| 2001 | 0 | 0 | 5 | 4B, NG | 1 | B | 2 | 2B | 1 | B | 0 | 0 | 1 | B | 0 | 0 | 0 | 0 | 10 | 9 | 0 | 0 | 0 | 1 | 0 |
| 2002 | 0 | 0 | 0 | 0 | 1 | B | 3 | 2B, NI | 1 | NI | 0 | 0 | 0 | 0 | 5 | 3B, 2C | 0 | 0 | 10 | 6 | 2 | 0 | 0 | 0 | 2 |
| 2003 | 0 | 0 | 2 | 2B | 1 | B | 2 | B, NI | 0 | 0 | 0 | 0 | 1 | B | 1 | C | 0 | 0 | 7 | 5 | 1 | 0 | 0 | 0 | 1 |
| 2004 | 0 | 0 | 2 | 2B | 1 | B | 2 | 2B | 1 | B | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 6 | 0 | 0 | 0 | 0 | 0 |
| 2005 | 1 | C | 2 | B, C | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | C | 4 | 1 | 3 | 0 | 0 | 0 | 0 |
| 2006 | 1 | B | 0 | 0 | 1 | NI | 2 | 2B | 0 | 0 | 1 | C | 1 | B | 0 | 0 | 0 | 0 | 6 | 4 | 1 | 0 | 0 | 0 | 1 |
| 2007 | 1 | B | 1 | B | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2B | 2 | B, W | 6 | 5 | 0 | 1 | 0 | 0 | 0 |
| 2008 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | B, C | 0 | 0 | 2 | 1 | 1 | 0 | 0 | 0 | 0 |
| 2009 | 1 | B | 2 | B, C | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | C | 0 | 0 | 4 | 2 | 2 | 0 | 0 | 0 | 0 |
| 2010 | 1 | B | 0 | 0 | 0 | 0 | 0 | 0 | 1 | NI | 0 | 0 | 0 | 0 | 1 | B | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 1 |
| 2011 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | C | 1 | Y | 1 | NI | 1 | B | 1 | C | 2 | 2Y | 7 | 1 | 2 | 0 | 3 | 0 | 1 |
| 2012 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | B, Y | 0 | 0 | 1 | NI | 1 | NI | 0 | 0 | 4 | 1 | 0 | 0 | 1 | 0 | 2 |
| 2013 | 3 | B, 2C | 0 | 0 | 0 | 0 | 2 | B, Y | 1 | B | 0 | 0 | 1 | NI | 1 | NI | 2 | C,Y | 10 | 3 | 3 | 0 | 2 | 0 | 2 |
| 2014 | 2 | C, W | 1 | NI | 0 | 0 | 1 | NI | 1 | C | 0 | 0 | 0 | 0 | 1 | C | 3 | C, W, NI | 9 | 0 | 4 | 2 | 0 | 0 | 3 |
| 2015 | 1 | C | 1 | B | 1 | NI | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2C | 5 | 1 | 3 | 0 | 0 | 0 | 1 |
| 2016 | 0 | 0 | 0 | 0 | 1 | NI | 0 | 0 | 1 | W | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 1 |
| 2017 | 2 | B, W | 1 | B | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 2 | 0 | 1 | 0 | 0 | 0 |
| Total | 14 | 7B, 5C, 2W | 24 | 20B, 2C, NG, NI | 8 | 5B,3NI | 17 | 11B, 2C, Y, 3NI | 10 | 4B, C, W, 2Y, 2NI | 2 | C, NI | 7 | 5B, 2NI | 17 | 8B, 7C, 2NI | 12 | B, 5C, 2W, 3Y, NI | 111 | 61 | 23 | 5 | 6 | 1 | 15 |
| Deaths | 1 | C | 4 | 3B, C | 1 | B | 2 | B, C | 1 | W | 0 | 0 | 0 | 0 | 3 | 2B, C | 2 | W, Y | 14 | 7 | 4 | 2 | 1 | 0 | 0 |
Meningococcal capsular groups marked in bold indicate a fatal outcome with the corresponding number of deaths shown in the bottom row. NI not identified: meningococcal capsule identification was not done.