Pertussis Cases by Year (1922-2015)
This table shows reported pertussis cases in the United States since 1922. The related trend charts can be found on the Surveillance and Reporting page.
Year
No. Reported Pertussis Cases
1922
107,473
1923
164,191
1924
165,418
1925
152,003
1926
202,210
1927
181,411
1928
161,799
1929
197,371
1930
166,914
1931
172,559
1932
215,343
1933
179,135
1934
265,269
1935
180,518
1936
147,237
1937
214,652
1938
227,319
1939
103,188
1940
183,866
1941
222,202
1942
191,383
1943
191,890
1944
109,873
1945
133,792
1946
109,860
1947
156,517
1948
74,715
1949
69,479
1950
120,718
1951
68,687
1952
45,030
1953
37,129
1954
60,886
1955
62,786
1956
31,732
1957
28,295
1958
32,148
1959
40,005
1960
14,809
1961
11,468
1962
17,749
1963
17,135
1964
13,005
1965
6,799
1966
7,717
1967
9,718
1968
4,810
1969
3,285
1970
4,249
1971
3,036
1972
3,287
1973
1,759
1974
2,402
1975
1,738
1976
1,010
1977
2,177
1978
2,063
1979
1,623
1980
1,730
1981
1,248
1982
1,895
1983
2,463
1984
2,276
1985
3,589
1986
4,195
1987
2,823
1988
3,450
1989
4,157
1990
4,570
1991
2,719
1992
4,083
1993
6,586
1994
4,617
1995
5,137
1996
7,796
1997
6,564
1998
7,405
1999
7,298
2000
7,867
2001
7,580
2002
9,771
2003
11,647
2004
25,827
2005
25,616
2006
15,632
2007
10,454
2008
13,278
2009
16,858
2010
27,550
2011
18,719
2012
48,277
2013
28,639
2014
32,971
2015
20,762
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