TABLE 2. Number of malaria cases* among U.S. military personnel, U.S. civilians, and non-U.S residents — United States, 1970–2018.
| Year | U.S. military personnel |
U.S. civilians |
Non-U.S. residents |
Status not recorded |
Total |
|---|---|---|---|---|---|
| No. (%) | No. (%) | No. (%) | No. (%) | No. (%) | |
| 1970 |
4,096 (96.4) |
90 (2.1) |
44 (1.0) |
17 (0.4) |
4,247 (100)
|
| 1971 |
2,975 (93.6) |
79 (2.5) |
69 (2.2) |
57 (1.8) |
3,180 (100)
|
| 1972 |
454 (73.9) |
106 (17.3) |
54 (8.8) |
0 (0.0) |
614 (100)
|
| 1973 |
41 (18.5) |
103 (46.4) |
78 (35.1) |
0 (0.0) |
222 (100)
|
| 1974 |
21 (6.5) |
158 (48.9) |
144 (44.6) |
0 (0.0) |
323 (100)
|
| 1975 |
17 (3.8) |
199 (44.4) |
232 (51.8) |
0 (0.0) |
448 (100)
|
| 1976 |
5 (1.2) |
178 (42.9) |
227 (54.7) |
5 (1.2) |
415 (100)
|
| 1977 |
11 (2.3) |
233 (48.4) |
237 (49.3) |
0 (0.0) |
481 (100)
|
| 1978 |
31 (5.0) |
270 (43.8) |
315 (51.1) |
0 (0.0) |
616 (100)
|
| 1979 |
11 (1.3) |
229 (26.1) |
634 (72.3) |
3 (0.3) |
877 (100)
|
| 1980 |
26 (1.4) |
303 (16.3) |
1,534 (82.3) |
1 (0.1) |
1,864 (100)
|
| 1981 |
21 (1.9) |
273 (24.8) |
809 (73.3) |
0 (0.0) |
1,103 (100)
|
| 1982 |
8 (0.9) |
348 (37.4) |
574 (61.7) |
0 (0.0) |
930 (100)
|
| 1983 |
10 (1.2) |
325 (40.5) |
468 (58.3) |
0 (0.0) |
803 (100)
|
| 1984 |
24 (2.4) |
360 (35.4) |
632 (62.2) |
0 (0.0) |
1,016 (100)
|
| 1985 |
31 (3.0) |
446 (42.7) |
568 (54.4) |
0 (0.0) |
1,045 (100)
|
| 1986 |
35 (3.2) |
410 (37.6) |
646 (59.2) |
0 (0.0) |
1,091 (100)
|
| 1987 |
23 (2.5) |
421 (45.2) |
488 (52.4) |
0 (0.0) |
932 (100)
|
| 1988 |
33 (3.2) |
550 (53.8) |
440 (43.0) |
0 (0.0) |
1,023 (100)
|
| 1989 |
35 (3.2) |
591 (53.6) |
476 (43.2) |
0 (0.0) |
1,102 (100)
|
| 1990 |
36 (3.3) |
558 (50.8) |
504 (45.9) |
0 (0.0) |
1,098 (100)
|
| 1991 |
22 (2.1) |
585 (55.9) |
439 (42.0) |
0 (0.0) |
1,046 (100)
|
| 1992 |
29 (3.2) |
394 (43.3) |
481 (52.9) |
6 (0.7) |
910 (100)
|
| 1993 |
278 (21.8) |
519 (40.7) |
453 (35.5) |
25 (2.0) |
1,275 (100)
|
| 1994 |
38 (3.7) |
524 (51.7) |
370 (36.5) |
82 (8.1) |
1,014 (100)
|
| 1995 |
12 (1.0) |
599 (51.3) |
461 (39.5) |
95 (8.1) |
1,167 (100)
|
| 1996 |
32 (2.3) |
618 (44.4) |
636 (45.7) |
106 (7.6) |
1,392 (100)
|
| 1997 |
28 (1.8) |
698 (45.2) |
592 (38.3) |
226 (14.6) |
1,544 (100)
|
| 1998 |
22 (1.8) |
636 (51.8) |
361 (29.4) |
208 (17.0) |
1,227 (100)
|
| 1999 |
55 (3.6) |
833 (54.1) |
381 (24.7) |
271 (17.6) |
1,540 (100)
|
| 2000 |
46 (3.3) |
827 (59.0) |
354 (25.2) |
175 (12.5) |
1,402 (100)
|
| 2001 |
18 (1.3) |
891 (64.4) |
316 (22.8) |
158 (11.4) |
1,383 (100)
|
| 2002 |
33 (2.5) |
849 (63.5) |
272 (20.3) |
183 (13.7) |
1,337 (100)
|
| 2003 |
36 (2.8) |
767 (60.0) |
306 (23.9) |
169 (13.2) |
1,278 (100)
|
| 2004 |
32 (2.4) |
775 (58.5) |
282 (21.3) |
235 (17.7) |
1,324 (100)
|
| 2005 |
36 (2.4) |
870 (56.9) |
297 (19.4) |
325 (21.3) |
1,528 (100)
|
| 2006 |
50 (3.2) |
736 (47.1) |
217 (13.9) |
561 (35.9) |
1,564 (100)
|
| 2007 |
33 (2.2) |
701 (46.6) |
263 (17.5) |
508 (33.8) |
1,505 (100)
|
| 2008 |
19 (1.5) |
510 (39.3) |
176 (13.6) |
593 (45.7) |
1,298 (100)
|
| 2009 |
18 (1.2) |
661 (44.5) |
201 (13.5) |
604 (40.7) |
1,484 (100)
|
| 2010 |
46 (2.7) |
1,085 (64.2) |
368 (21.8) |
192 (11.4) |
1,691 (100)
|
| 2011 |
91 (4.7) |
1,098 (57.0) |
386 (20.1) |
350 (18.2) |
1,925 (100)
|
| 2012 |
43 (2.5) |
1,121 (66.4) |
328 (19.4) |
195 (11.6) |
1,687 (100)
|
| 2013 |
14 (0.8) |
1,136 (65.2) |
349 (20.0) |
242 (13.9) |
1,741 (100)
|
| 2014 |
31 (1.8) |
1,114 (64.6) |
384 (22.3) |
196 (11.4) |
1,725 (100)
|
| 2015 |
23 (1.5) |
933 (61.2) |
368 (24.2) |
200 (13.1) |
1,524 (100)
|
| 2016 |
41 (2.0) |
1,216 (58.5) |
581 (28.0) |
240 (11.5) |
2,078 (100)
|
| 2017 |
26 (1.2) |
1,290 (59.7) |
516 (23.9) |
329 (15.2) |
2,161 (100)
|
| 2018 | 38 (2.1)† | 1,066 (58.5) | 375 (20.6)† | 344 (18.9)† | 1,823 (100) |
* A case was defined as symptomatic or asymptomatic illness that occurs in the United States or one of its territories in a person who has laboratory-confirmed malaria parasitemia (microscopy or polymerase chain reaction), regardless of whether the person had previous episodes of malaria. A subsequent episode of malaria occurring in a person is counted as an additional case unless it occurred as a result of a drug resistance failure. Relapsing illnesses are counted as a subsequent case.
† Denotes 2018 values that are statistically different (Pearson’s chi-square, p<0.5) from those in 2017.