Volume 10, Number 1—January 2004
Research
Influenza Epidemics in the United States, France, and Australia, 1972–19971
Cécile Viboud*†
, Pierre-Yves Boëlle*‡, Khashayar Pakdaman*, Fabrice Carrat*‡, Alain-Jacques Valleron*‡, and Antoine Flahault*†‡
, Pierre-Yves Boëlle*‡, Khashayar Pakdaman*, Fabrice Carrat*‡, Alain-Jacques Valleron*‡, and Antoine Flahault*†‡
Table
Number of pneumonia and influenza excess deaths and duration of influenza epidemics for each influenza year in the United States, France, and Australia, 1972–1997
| Influenza season (Northern Hemisphere) a | U.S. excess deaths (wk)b | France excess deaths (wk)c | Influenza season (Southern Hemisphere) d | Australian excess deaths (wk)e |
|---|---|---|---|---|
| 1971-72 | 8,100 (9) | 4,200 (13) | 1972 | 200 (11) |
| 1972-73 | 11,000 (13) | 9,500 (13) | 1973 | 250 (10) |
| 1973-74 | 4,100 (15) | 0 (0) | 1974 | 150 (6) |
| 1974-75 | 9,000 (13) | 7,000 (16) | 1975 | 900 (14) |
| 1975-76 | 13,600 (13) | 4,800 (12) | 1976 | 0 (0) |
| 1976-77 | 600 (3) | 1,400 (9) | 1977 | 1,000 (16) |
| 1977-78 | 10,000 (13) | 2,500 (8) | 1978 | 200 (8) |
| 1978-79 | 0 (0) | 300 (4) | 1979 | 100 (7) |
| 1979-80 | 4,200 (9) | 0 (0) | 1980 | 250 (13) |
| 1980-81 | 8,600 (10) | 3,100 (11) | 1981 | 200 (9) |
| 1981-82 | 0 (0) | 0 (0) | 1982 | 0 (0) |
| 1982-83 | 1,400 (5) | 1,800 (10) | 1983 | 700 (15) |
| 1983-84 | 700 (4) | 0 (0) | 1984 | 250 (12) |
| 1984-85 | 7,000 (11) | 2,300 (15) | 1985 | 150 (8) |
| 1985-86 | 6,000 (13) | 4,700 (18) | 1986 | 650 (15) |
| 1986-87 | 2,000 (7) | 900 (9) | 1987 | 0 (0) |
| 1987-88 | 8,700 (18) | 700 (8) | 1988 | 100 (7) |
| 1988-89 | 7,000 (16) | 1,000 (9) | 1989 | 200 (9) |
| 1989-90 | 10,400 (14) | 4,300 (11) | 1990 | 750 (17) |
| 1990-91 | 3,300 (12) | 1,000 (10) | 1991 | 100 (6) |
| 1991-92 | 6,800 (10) | 2,900 (16) | 1992 | 50 (3) |
| 1992-93 | 6,300 (16) | 2,100 (16) | 1993 | 300 (14) |
| 1993-94 | 9,800 (11) | 2,600 (11) | 1994 | 50 (3) |
| 1994-95 | 5,300 (15) | 900 (10) | 1995 | 300 (10) |
| 1995-96 | 6,300 (16) | 2,500 (17) | 1996 | 100 (5) |
| 1996-97 | 11,400 (18) | 4,500 (13) | 1997 | 250 (10) |
| aExcess deaths reported from August of a given year to July of the next year during an influenza epidemic (e.g., for row labeled 1971-72, excess deaths occurring from August 1971 to July 1972). bPopulation, 272.7 million. cPopulation, 58.6 million. dExcess deaths reported from January to December of a given year during an influenza epidemic (e.g., for row labeled 1972, excess deaths occurring from January 1972 to December 1972). ePopulation, 18.9 million. | ||||
1 This paper was presented at the Emerging Infectious Diseases conference held March 24–27, 2002, in Atlanta, Georgia, USA.
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