Key points
- Following the introduction of pertussis vaccines in the 1940s, reports declined dramatically.
- During the 1980s, pertussis reports began increasing gradually and continued through the start of the COVID-19 pandemic in 2020.
Number of reported pertussis cases per year
This table shows reported pertussis cases in the United States since 1922. The related trend charts can be found on the Surveillance and Trends 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 |
| 2016 | 17,972 |
| 2017 | 18,975 |
| 2018 | 15,609 |
| 2019 | 18,617 |
| 2020 | 6,124 |
| 2021 | 2,116 |
| 2022 | 3,044 |