Table 5. Change in Annual Estimated Incidence of Haemophilus influenzae Disease Serotypes—United States, 2002–2015.

Serotype	2002–2008 average annual incidencea,b	2009–2015 average annual incidencea	Percent change in incidence (2002–2008b vs. 2009–2015)	2002–2015 annual percent change in incidence (95% CI)
Hib	0.04	0.03	−25%	−4% (−5% to −3%)
Non-b	0.41	0.45	10%	1% (1%–2%)
a	0.04	0.10	148%	13% (12%–15%)
c	0.004	0	−100%	−27% (−33% to −21%)
d	0.004	0.002	−45%	−5% (−9% to 0%)
e	0.09	0.08	−15%	−1% (−2% to −1%)
f	0.27	0.27	0%	0% (−1% to 0%)
Nontypeable	1.01	1.22	21%	3% (3%–3%)
Totalc	1.47	1.70	16%	2% (2%–2%)

Abbreviations: CI, confidence interval

^aCases per 100 000 persons per year.

^bThe 2002–2008 cases are a subset of data previously published by MacNeil et al [1].

^cIncludes cases with unknown serotype.