Table 1. Typeable and nontypeable Haemophilus influenzae isolates, Alaska 1983–2011.
| Year | Isolate type |
|||||||
|---|---|---|---|---|---|---|---|---|
| a | b | c | d | e | f | NT* | Total | |
| 1983 | 0 | 71 | 0 | 0 | 0 | 0 | 4 | 75 |
| 1984 | 0 | 73 | 0 | 0 | 0 | 0 | 5 | 78 |
| 1985 | 0 | 88 | 0 | 0 | 1 | 2 | 2 | 93 |
| 1986 | 0 | 82 | 0 | 0 | 0 | 0 | 3 | 85 |
| 1987 | 0 | 52 | 0 | 0 | 0 | 2 | 4 | 58 |
| 1988 | 0 | 60 | 0 | 0 | 0 | 2 | 0 | 62 |
| 1989 | 0 | 44 | 0 | 0 | 0 | 0 | 1 | 45 |
| 1990 | 0 | 44 | 0 | 0 | 0 | 0 | 2 | 46 |
| 1991† | 0 | 22 | 0 | 0 | 0 | 0 | 3 | 25 |
| 1992 | 0 | 3 | 0 | 0 | 0 | 2 | 0 | 5 |
| 1993 | 0 | 8 | 0 | 0 | 1 | 3 | 2 | 14 |
| 1994 | 0 | 2 | 0 | 0 | 1 | 0 | 11 | 14 |
| 1995 | 0 | 4 | 0 | 0 | 0 | 3 | 10 | 17 |
| 1996 | 0 | 8 | 0 | 0 | 0 | 2 | 4 | 14 |
| 1997 | 0 | 9 | 0 | 0 | 0 | 1 | 6 | 16 |
| 1998 | 0 | 5 | 0 | 0 | 1 | 1 | 8 | 15 |
| 1999 | 0 | 8 | 0 | 0 | 0 | 1 | 2 | 11 |
| 2000 | 0 | 9 | 0 | 0 | 1 | 2 | 3 | 15 |
| 2001 | 0 | 1 | 0 | 0 | 0 | 3 | 6 | 10 |
| 2002 | 1 | 1 | 0 | 0 | 0 | 0 | 8 | 10 |
| 2003 | 6 | 2 | 0 | 1 | 0 | 1 | 8 | 18 |
| 2004 | 0 | 2 | 0 | 0 | 0 | 4 | 5 | 11 |
| 2005 | 1 | 4 | 0 | 0 | 0 | 2 | 2 | 9 |
| 2006 | 2 | 3 | 0 | 1 | 1 | 4 | 7 | 18 |
| 2007 | 2 | 0 | 0 | 0 | 1 | 0 | 10 | 13 |
| 2008 | 2 | 3 | 0 | 0 | 1 | 1 | 13 | 20 |
| 2009 | 2 | 4 | 0 | 0 | 4 | 2 | 8 | 20 |
| 2010 | 9 | 3 | 0 | 0 | 0 | 3 | 11 | 26 |
| 2011 |
7 |
2 |
0 |
0 |
1 |
3 |
10 |
23 |
| Total | 32 | 617 | 0 | 2 | 13 | 44 | 158 | 866 |
*NT, not typeable. †Haemophilus influenza type b conjugate vaccine introduction in Alaska.