Mekong malaria elimination programme: epidemiology summary, volume 4, October-December 2018

Mekong Malaria Elimination Programme Epidemiology summary Volume 4, October–December 2018 Overview (October–December 2018) From October to December 2018, Greater Mekong Subregion (GMS) countries reported 25 974 malaria cases, representing a 21% decrease compared to the same time period in 2017. Cambodia The country reported 16 297 cases, a 16% decrease compared to the same time period in 2017. Cases are mostly in the north- eastern and north-western regions of Cambodia, along the forested border areas with Viet Nam, Lao PDR and Thailand. China The country reported no indigenous cases. Lao People's Democratic Republic (PDR) The country reported 2694 cases, a 14% increase compared to the same time period in 2017. Most cases are in the five southern provinces. Myanmar The country reported 3914 cases, a 46% decrease compared to the same time period in 2017. Most cases are in the border states/region to India and Bangladesh. Thailand The country reported 1358 cases, a 30% decrease compared to the same time period in 2017. Most cases are in the border provinces to Malaysia, Myanmar and Cambodia. Viet Nam The country reported 1711 cases, a 16% decrease compared to the same time period in 2017. Most cases are indigenous and located in the border provinces to Cambodia. Monthly malaria incidence in the GMS (2018)* *Incidence is calculated as the number of reported cases per month per 1000 population. 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 Jan-18 Feb-18 Mar-18 Apr-18 May-18 Jun-18 Jul-18 Aug-18 Sep-18 Oct-18 Nov-18 Dec-18 Cambodia China Lao PDR Myanmar Thailand Viet Nam Monthly malaria incidence by country* (2016–2018) Regional map of malaria incidence by province (October–December 2018)* *Incidence is calculated as the number of reported cases from October to December 2018 per 1000 population. The boundaries and names shown and the designations used on this map do not imply the expression of any opinion whatsoever on the part of the World Health Organization concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. Dotted and dashed lines on maps represent approximate border lines for which there may not yet be full agreement. Cambodia 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 Jan Mar May July Sep Nov 0 0.1 0.2 0.3 0.4 0.5 Jan Mar May July Sep Nov 0 0.1 0.2 0.3 0.4 0.5 Jan Mar May July Sep Nov Lao PDR Myanmar Thailand 0 0.002 0.004 0.006 0.008 0.01 Jan Mar May July Sep Nov 0 0.01 0.02 0.03 0.04 0.05 0.06 Jan Mar May July Sep Nov Viet Nam *Incidence is calculated as the number of reported cases per month per 1000 population. Incidence per 1000 population Percentage of P. falciparum cases by month by country* (2016–2018) Cambodia 0% 10% 20% 30% 40% 50% 60% 70% 80% Jan Mar May July Sep Nov 0% 10% 20% 30% 40% 50% 60% 70% 80% Jan Mar May July Sep Nov 0% 10% 20% 30% 40% 50% 60% 70% 80% Jan Mar May July Sep Nov Lao PDR Myanmar Thailand 0% 10% 20% 30% 40% 50% 60% 70% 80% Jan Mar May July Sep Nov 0% 10% 20% 30% 40% 50% 60% 70% 80% Jan Mar May July Sep Nov Viet Nam Cambodia 0% 1% 2% 3% 4% 5% 6% 7% 8% Jan Mar May July Sep Nov 0% 2% 4% 6% 8% 10% 12% 14% 16% Jan Mar May July Sep Nov 0% 5% 10% 15% 20% 25% 30% 35% Jan Mar May July Sep Nov Lao PDR Myanmar Thailand 0.0% 0.1% 0.2% 0.3% 0.4% 0.5% 0.6% 0.7% Jan Mar May July Sep Nov 0.0% 0.5% 1.0% 1.5% 2.0% 2.5% Jan Mar May July Sep Nov Viet Nam Monthly test positivity rate (TPR) by country* (2016–2018) *Percentage of P. falciparum cases is calculated as number of confirmed cases due to P. falciparum divided by total confirmed cases per month per country. *TPR is calculated as number of confirmed cases divided by number of tested cases (including rapid diagnostic tests and microscopy) per month per country. Country Surveillance indicator1 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Cambodia Deaths 0 0 0 0 0 0 0 0 0 0 1 0 Suspected cases tested 10 644 9 967 8 955 9 809 13 115 18 660 20 592 22 820 26 735 27 357 23 790 21 141 Confirmed cases 1 363 1 214 991 1 214 2 524 4 539 4 564 4 880 5 707 6 280 6 865 6 449 P. falciparum cases 712 571 464 600 1 353 2 570 2 636 2 714 3 323 3 512 3 514 3 203 P. vivax cases 606 583 489 515 1 040 1 763 1 749 2 003 2 179 2 485 3 104 2 997 Mixed cases 45 60 38 99 131 206 179 163 205 283 247 249 Other cases 0 0 0 0 0 0 0 0 0 0 0 0 China Deaths 0 0 0 0 0 0 0 0 0 0 0 0 Suspected cases tested 10 669 11 424 11 117 12 432 15 576 14 254 17 108 17 835 21 742 17 974 14 285 11 757 Confirmed cases 13 43 23 34 39 55 31 21 12 9 5 6 P. falciparum cases 0 2 0 2 0 1 0 0 2 0 0 2 P. vivax cases 13 41 23 32 39 54 31 21 10 9 4 4 Mixed cases 0 0 0 0 0 0 0 0 0 0 1 0 Other cases 0 0 0 0 0 0 0 0 0 0 0 0 Lao PDR Deaths 0 0 0 0 0 0 1 0 0 0 1 0 Suspected cases tested 16 512 14 480 17 612 18 558 20 533 23 289 24 473 28 289 33 424 25 253 20 718 17 117 Confirmed cases 648 490 430 485 802 1 180 1 031 933 963 740 887 738 P. falciparum cases 275 190 137 157 338 536 485 444 527 418 594 447 P. vivax cases 361 295 284 321 454 621 520 449 410 306 284 286 Mixed cases 12 5 9 7 10 23 26 40 26 16 9 5 Other cases 0 0 0 0 0 0 0 0 0 0 0 0 Myanmar Deaths 0 3 1 1 2 2 3 6 3 3 4 2 Suspected cases tested 72 933 67 027 62 134 56 287 74 548 98 820 117 147 121 981 116 267 99 258 104 306 90 740 Confirmed cases 2 077 1 462 1 002 1 289 2 193 4 168 4 340 3 231 2 694 2 247 2 532 2 453 P. falciparum cases 1 375 876 568 804 1 350 2 749 3 041 2 301 1 935 1 640 1 907 1 696 P. vivax cases 662 558 405 457 804 1 356 1 200 845 682 538 571 715 Mixed cases 45 34 29 33 44 82 104 92 80 73 56 46 Other cases 2 0 1 0 2 0 2 0 0 0 1 0 Thailand2 Deaths Data not provided Suspected cases tested 102 628 92 906 105 890 78745 111 183 134 315 113 579 112 696 91 009 88 773 93 208 63 852 Confirmed cases 1049 638 574 722 1321 1843 1532 1080 691 625 632 694 P. falciparum cases 226 64 61 106 210 198 129 113 48 65 53 79 P. vivax cases 769 535 478 573 1047 1566 1329 923 592 516 543 582 Mixed cases 2 4 3 3 9 8 19 8 4 9 5 5 Other cases 52 35 32 40 55 71 55 36 47 35 31 28 Viet Nam Deaths 0 0 0 0 0 1 0 1 0 1 0 2 Suspected cases tested 247 798 146 774 195 424 180 680 192 568 190 150 199 330 216 387 228 651 221 439 200 388 191 518 Confirmed cases 313 292 213 168 202 215 267 396 429 492 728 827 P. falciparum cases 206 162 116 88 110 123 163 252 264 307 494 567 P. vivax cases 102 118 96 76 88 91 104 140 152 174 221 243 Mixed cases 4 11 0 4 3 1 0 4 5 11 12 15 Other cases 1 1 1 0 1 0 0 0 8 0 1 2 1 Mixed cases include cases identified with more than one Plasmodium species. Other cases refer to P. malariae, P. ovale, P. knowlesi and unknown. Data in the table include microscopy and rapid diagnostic tests (RDTs). 2 Numbers of cases tested are reported from the vertical malaria programme, including data from some public hospitals. Monthly malaria cases and deaths by country in 2017 (January–December) Country Surveillance indicator1 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Cambodia Deaths 0 0 0 0 0 0 0 0 0 0 0 0 Suspected cases tested 18714 16579 18135 18303 20314 26373 29676 30026 27773 27882 26978 28485 Confirmed cases 5591 4170 4102 4368 5136 6832 7059 6514 6315 6095 5459 4743 P. falciparum cases 2473 1501 1267 1371 1388 1995 1838 1389 1513 1402 1168 884 P. vivax cases 2933 2561 2735 2877 3554 4631 4976 4937 4633 4573 4168 3765 Mixed cases 185 108 100 120 194 206 245 188 169 120 123 94 Other cases 0 0 0 0 0 0 0 0 0 0 0 0 China Deaths 0 0 0 1 0 0 0 0 0 0 0 0 Suspected cases tested 10961 8712 10488 10391 14468 13994 14404 16670 13344 14245 12095 12060 Confirmed cases 11 14 20 23 25 32 21 12 8 1 3 2 P. falciparum cases 1 0 0 2 0 0 1 0 0 0 1 0 P. vivax cases 10 13 20 21 25 32 20 12 8 1 2 2 Mixed cases 0 0 0 0 0 0 0 0 0 0 0 0 Other cases 0 0 0 0 0 0 0 0 0 0 0 0 Lao PDR Deaths 1 0 0 0 0 1 2 0 0 1 1 0 Suspected cases tested 16581 15298 16974 17451 22357 25734 28107 29358 30785 29071 23904 25131 Confirmed cases 685 457 390 424 761 968 1003 734 791 895 861 938 P. falciparum cases 445 223 192 227 448 543 563 343 399 436 443 462 P. vivax cases 231 226 190 191 308 415 431 385 383 448 399 467 Mixed cases 9 8 8 6 5 10 9 6 9 11 19 9 Other cases 0 0 0 0 0 0 0 0 0 0 0 0 Myanmar Deaths 1 1 1 1 1 1 0 1 1 3 3 0 Suspected cases tested 84915 89199 90444 83673 94339 102984 121275 127374 139527 124391 106623 87776 Confirmed cases 1695 1085 932 1021 1722 3083 2854 2037 1732 1876 1205 833 P. falciparum cases 1094 653 524 527 986 1854 1739 1287 1105 1223 699 443 P. vivax cases 553 421 392 479 717 1203 1066 708 588 620 480 379 Mixed cases 50 19 18 18 25 47 57 42 40 34 26 10 Other cases 0 0 0 1 0 0 0 0 1 0 0 2 Thailand2 Deaths Data not provided Suspected cases tested 77960 75361 69483 65997 83191 93519 83554 91085 74578 74969 93425 41780 Confirmed cases 455 381 298 434 725 997 863 590 523 580 444 334 P. falciparum cases 57 41 45 52 83 112 82 63 68 79 57 52 P. vivax cases 360 311 233 364 597 835 737 500 413 476 362 264 Mixed cases 7 9 7 3 14 12 8 2 8 3 4 1 Other cases 31 20 13 15 31 38 36 25 34 22 21 17 Viet Nam Deaths 0 0 0 1 0 0 0 0 0 0 0 0 Suspected cases tested 146677 121634 165569 176352 204014 185103 166957 169698 171835 172351 157244 152475 Confirmed cases 614 475 357 255 209 195 265 281 451 594 645 472 P. falciparum cases 368 290 206 139 99 93 173 165 270 412 426 319 P. vivax cases 229 169 138 106 101 96 88 112 173 180 215 151 Mixed cases 16 15 11 8 7 5 4 1 6 2 3 2 Other cases 1 1 2 2 2 1 0 3 2 0 1 0 1 Mixed cases include cases identified with more than one Plasmodium species. Other cases refer to P. malariae, P. ovale, P. knowlesi and unknown. Data in the table include microscopy and rapid diagnostic tests (RDTs). 2 Numbers of cases tested are reported from the vertical malaria programme, including data from some public hospitals. Monthly malaria cases and deaths by country in 2018 (January–December) Disclaimer: The Mekong Malaria Elimination (MME) is an initiative aimed at supporting the countries in the Greater Mekong Subregion towards the goal of malaria elimination by 2030. The World Health Organization (WHO) has compiled data for this publication based on reports from the countries in the Greater Mekong Subregion. The data presented in this publication are based on available data as of February 2019. The designations employed and the presentation of the material in this summary do not imply the expression of any opinion whatsoever on the part of WHO concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. WHO does not warrant that the information contained in this summary is complete and correct and shall not be liable for any damages incurred as a result of its use. This summary may not be reviewed, abstracted, quoted, reproduced, transmitted, distributed, translated or adapted, in part or in whole, in any form or by any means without the prior written consent of WHO. WHO/CDS/GMP/MME/2018.05 © World Health Organization 2018. Some rights reserved. This work is available under the CC BY-NC-SA 3.0 IGO licence. Data sources: Reported cases include cases reported from all sources of public health facilities, community health workers and the private sector, except for Cambodia and Myanmar data which do not include private sector data. The case count in China includes only indigenous cases. For the regional map of malaria incidence by province, the annual population estimate is based on the estimate submitted by each country to the World Malaria Report in 2017. All other population estimates are based on the annual UN estimate of total population.