WHO/NREVSS Collaborating Laboratories
National Summary, 2001-02 through 2004-05
Week B A(Unsubtyped) A(H1N1) and A(H1N2) A(H3N2) Percent Positive
200140 1 3 0 4 0.7
200141 0 3 0 2 0.4
200142 0 4 0 3 0.5
200143 0 8 0 7 1
200144 0 6 1 6 0.8
200145 0 1 0 12 0.7
200146 1 7 0 37 2.3
200147 3 2 0 25 1.6
200148 1 20 0 50 3.2
200149 5 42 1 34 3.7
200150 2 63 2 39 4.7
200151 3 113 3 44 5.9
200152 1 166 0 50 8.7
200201 2 227 0 108 9.9
200202 6 377 2 143 14.1
200203 5 625 1 267 19.7
200204 11 814 8 378 21.4
200205 20 949 3 450 23.5
200206 15 933 7 614 23.4
200207 22 1115 5 610 24.4
200208 56 1166 12 533 25.7
200209 80 912 8 384 23.8
200210 125 699 6 251 21.8
200211 155 450 6 156 19.3
200212 203 253 3 103 16.3
200213 265 113 3 44 14.2
200214 225 65 3 17 13.3
200215 172 36 4 17 11.9
200216 206 14 6 18 13.9
200217 111 6 1 4 8.1
200218 114 4 0 10 9.7
200219 106 3 1 0 10
200220 49 0 1 0 5.3
200221
200222
200223
200224
200225
200226
200227
200228
200229
200230
200231
200232
200233
200234
200235
200236
200237
200238
200239
200240 0 0 0 0 0
200241 1 1 1 0 0.2
200242 0 0 0 0 0
200243 1 1 3 0 0.3
200244 3 3 0 0 0.3
200245 3 0 0 2 0.2
200246 4 6 0 0 0.4
200247 16 5 2 0 1
200248 6 5 1 2 0.7
200249 28 6 4 3 1.6
200250 74 15 8 2 3.6
200251 143 25 17 3 5.9
200252 151 21 17 6 6.9
200301 111 35 37 8 5.7
200302 188 46 59 18 8.8
200303 272 88 88 11 12.1
200304 383 150 115 24 16.4
200305 534 242 200 47 20.3
200306 704 361 298 71 25
200307 580 352 273 108 24
200308 411 308 288 126 21.4
200309 376 279 301 99 21.4
200310 237 238 235 83 19.3
200311 183 229 165 59 16.7
200312 125 198 197 67 15
200313 71 111 120 28 10.6
200314 38 92 59 23 8.8
200315 16 53 22 20 5.1
200316 17 22 6 12 3.9
200317 8 27 3 13 3.8
200318 15 19 11 4 4.2
200319 3 6 4 6 2.2
200320 1 1 0 2 0.8
200321
200322
200323
200324
200325
200326
200327
200328
200329
200330
200331
200332
200333
200334
200335
200336
200337
200338
200339
200340 1 19 0 2 1.7
200341 0 74 0 3 4.9
200342 0 130 0 18 8.2
200343 4 398 0 57 18.5
200344 0 435 0 103 20.3
200345 3 584 1 273 24.9
200346 2 908 0 394 28.9
200347 8 1370 0 592 34
200348 9 1743 0 488 35.2
200349 31 2242 0 977 34.8
200350 26 2616 0 1401 33.9
200351 20 2481 0 1105 31.5
200352 16 1745 0 568 25.1
200353 10 1189 0 462 20.2
200401 9 571 0 280 12.8
200402 7 333 0 168 9.6
200403 1 150 0 95 5.9
200404 4 67 0 92 4.1
200405 1 56 1 46 3.1
200406 4 29 0 24 1.8
200407 8 18 0 28 1.9
200408 5 7 0 16 1.3
200409 6 4 0 4 0.6
200410 5 6 0 2 0.6
200411 0 5 0 4 0.5
200412 12 2 0 5 1.4
200413 8 5 0 3 1.2
200414 4 1 0 0 0.4
200415 9 3 0 0 1.1
200416 4 8 0 1 1.4
200417 5 3 0 0 1
200418 4 0 0 0 0.7
200419 0 0 0 0 0
200420 0 0 0 0 0
200421
200422
200423
200424
200425
200426
200427
200428
200429
200430
200431
200432
200433
200434
200435
200436
200437
200438
200439
200440 4 3 0 5 0.7
200441 1 3 0 10 0.7
200442 10 11 0 16 1.5
200443 7 12 0 13 1.2
200444 16 10 0 19 1.6
200445 24 10 0 28 2
200446 20 29 0 41 2.9
200447 21 22 0 18 1.9
200448 32 40 0 64 3.5
200449 32 73 0 88 5.2
200450 45 121 1 108 6.3
200451 54 279 1 179 11.7
200452 124 503 0 325 16.4
200501 166 703 2 400 18.4
200502 182 619 2 298 16.7
200503 209 880 2 374 21.3
200504 300 1023 1 510 23.3
200505 412 1186 0 686 27
200506 457 1413 2 638 26.6
200507 600 1356 2 688 25.7
200508 551 1100 1 482 22.7
200509 489 932 0 225 20
200510 408 618 0 161 16.2
200511 454 482 0 145 17.1
200512 392 158 0 102 13.3
200513 332 164 3 49 11.3
200514 202 93 0 47 9.3
200515 112 39 0 14 5.2
200516 59 25 1 17 3.8
200517 35 11 0 10 2.6
200518 24 6 0 10 2
200519 15 5 0 13 1.7
200520 10 2 0 18 1.9
Includes both the A (H1N1) and A (H1N2) influenza virus subtypes.