Mekong malaria elimination programme: epidemiology summary, volume 8, October-December 2019

Mekong Malaria Elimination Programme Epidemiology summary Volume 8, October–December 2019 Overview (October–December 2019) From October to December 2019, Greater Mekong Subregion (GMS) countries reported 18 489 malaria cases, representing a 31% decrease compared to the same time period in 2018. Cambodia The country reported 6194 cases, a 62% decrease compared to the same time period in 2018. Cases are mostly in the north- eastern and south-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 1438 cases, a 48% decrease compared to the same time period in 2018. Most cases are in the five southern provinces. Myanmar The country reported 8519 cases, a 92% increase compared to the same time period in 2018. Most cases are in the border states/region to India and Bangladesh. Thailand The country reported 962 cases, a 30% decrease compared to the same time period in 2018. Most cases are in the border provinces to Malaysia, Myanmar and Cambodia. Viet Nam The country reported 1376 cases, a 20% increase compared to the same time period in 2018. Most cases are indigenous and located in the border provinces to Cambodia. Monthly malaria incidence in the GMS (last 12 months)* *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 Jan-19 Feb-19 Mar-19 Apr-19 May-19 Jun-19 Jul-19 Aug-19 Sep-19 Oct-19 Nov-19 Dec-19 Cambodia China Lao PDR Myanmar Thailand Viet Nam Monthly malaria incidence by country* (2017–2019) Regional map of malaria incidence by province (October–December 2019)* *Incidence is calculated as the number of reported cases from October to December 2019 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 0.05 0.1 0.15 0.2 Jan Mar May July Sep Nov 0 0.05 0.1 0.15 0.2 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 0.005 0.01 0.015 0.02 0.025 0.03 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* (2017–2019) 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% 20% 40% 60% 80% 100% 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% Jan Mar May July Sep Nov 0% 1% 2% 3% 4% 5% 6% 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% Jan Mar May July Sep Nov 0.0% 0.2% 0.4% 0.6% 0.8% 1.0% 1.2% 1.4% 1.6% Jan Mar May July Sep Nov Viet Nam Monthly test positivity rate (TPR) by country* (2017–2019) *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. 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 for China refer to imported cases in this table. No indigenous cases were reported in 2018. 3 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) 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 28571 Confirmed cases 5591 4170 4102 4368 5136 6832 7059 6514 6315 6095 5459 4745 P. faliciparum 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 3767 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. faliciparum 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 16683 15408 17098 17595 22620 25882 28448 29772 31255 29269 24403 29671 Confirmed cases 685 457 390 425 762 970 1006 761 803 911 922 946 P. faliciparum cases 445 223 192 227 448 544 563 367 406 450 495 468 P. vivax cases 231 226 190 192 309 416 433 388 388 450 407 469 Mixed cases 9 8 8 6 5 10 10 6 9 11 20 9 Other cases 0 0 0 0 0 0 0 0 0 0 0 0 Myanmar Deaths 1 1 1 1 1 5 1 1 1 3 3 0 Suspected cases tested 87965 92146 93140 85631 97133 103497 124868 132246 147269 130228 114470 112368 Confirmed cases 1731 1072 916 1016 1694 3057 2989 2227 1913 2023 1319 1096 P. faliciparum cases 1111 627 506 514 960 1828 1804 1443 1242 1332 773 622 P. vivax cases 572 426 395 487 714 1203 1136 742 624 657 520 461 Mixed cases 51 20 17 18 25 47 57 42 48 35 26 12 Other cases 0 0 0 1 0 0 0 0 1 0 0 2 Thailand2 Deaths Data not provided Suspected cases tested 78378 75546 69551 66036 83350 93666 83700 91236 74785 75379 94738 82074 Confirmed cases 461 392 305 438 740 1022 877 589 518 592 453 336 P. faliciparum cases 57 42 47 53 87 117 84 64 67 82 64 53 P. vivax cases 367 321 238 367 608 860 751 500 410 487 369 269 Mixed cases 7 9 7 3 14 10 8 2 8 3 4 1 Other cases 31 22 15 11 52 45 39 32 38 18 11 6 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. faliciparum 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 include data from two systems: the malaria information system (MIS) and the health information system (HIS). 3 Numbers of cases for China refer to imported cases in this table. No indigenous cases were reported in 2019. 4 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 2019 (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 August 2019. The designations employed and the presentation of the material in this publication 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. Dotted and dashed lines on maps represent approximate border lines for which there may not yet be full agreement. All reasonable precautions have been taken by WHO to verify the information contained in this publication. However, the published material is being distributed without warranty of any kind, either expressed or implied. The responsibility for the interpretation and use of the material lies with the reader. In no event shall WHO be liable for damages arising from its use. ISBN 978-92-4-000341-5 (electronic version) ISBN 978-92-4-000342-2 (print version) © World Health Organization 2020. 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. 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 2018. All other population estimates are based on the annual UN estimate of total population. 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 29295 31755 34302 37907 44405 56145 64623 57576 59652 60021 60112 61732 Confirmed cases 4414 3239 2659 2452 2441 2574 3315 2424 2284 2313 2150 1731 P. faliciparum cases 692 443 267 255 293 397 592 385 313 409 378 234 P. vivax cases 3662 2741 2356 2172 2102 2118 2677 2005 1939 1862 1752 1481 Mixed cases 60 55 36 25 46 59 46 34 32 42 20 16 Other cases 0 0 0 0 0 0 0 0 0 0 0 0 China3 Deaths 0 0 0 0 0 0 0 0 0 0 0 0 Suspected cases tested 11259 9049 10114 9473 12069 13444 14396 14124 13452 11965 10124 8123 Confirmed cases 13 4 4 10 10 18 34 10 7 2 34 11 P. faliciparum cases 0 0 0 1 1 0 0 0 0 0 1 0 P. vivax cases 13 4 4 9 9 18 34 10 7 2 33 11 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 0 0 0 0 0 0 0 0 0 0 0 0 Suspected cases tested 29108 26936 30061 34683 44703 64352 63286 58857 51907 48002 45958 38726 Confirmed cases 825 430 405 395 493 728 748 659 521 458 585 395 P. faliciparum cases 339 162 122 124 113 176 269 199 184 119 211 134 P. vivax cases 470 267 279 267 379 547 465 447 328 333 373 257 Mixed cases 16 1 4 4 1 5 14 13 9 6 1 4 Other cases 0 0 0 0 0 0 0 0 0 0 0 0 Myanmar Deaths 3 0 0 0 1 1 2 3 1 0 1 0 Suspected cases tested 216455 218680 218919 214766 240941 276357 312625 309647 304760 249912 241138 203252 Confirmed cases 3348 2169 1804 2372 3286 6667 8394 5165 4032 2866 3252 2401 P. faliciparum cases 1186 627 419 587 961 2126 3625 2569 2096 1431 1407 806 P. vivax cases 2120 1513 1368 1772 2306 4497 4692 2531 1890 1403 1827 1577 Mixed cases 42 32 18 14 23 51 83 68 41 29 15 16 Other cases 0 0 0 0 0 0 0 0 0 0 0 0 Thailand2 Deaths Data not provided Suspected cases tested 84317 73778 69611 61620 79543 91539 96568 77443 76518 67267 81017 68452 Confirmed cases 307 225 229 262 560 1122 857 490 410 387 338 237 P. faliciparum cases 48 30 28 35 105 175 57 43 37 43 19 17 P. vivax cases 245 184 185 212 431 914 762 428 361 337 307 208 Mixed cases 1 4 2 1 7 7 8 6 0 0 0 1 Other cases 1 3 7 9 6 4 9 5 5 2 8 5 Viet Nam Deaths 0 0 0 0 0 0 0 0 0 0 0 0 Suspected cases tested 112082 115769 151158 152292 172366 186983 184828 183668 218268 173108 156510 146799 Confirmed cases 554 361 261 261 358 230 477 355 266 486 588 302 P. faliciparum cases 362 222 153 161 282 162 334 228 134 367 390 204 P. vivax cases 188 135 106 99 71 68 139 124 130 118 190 92 Mixed cases 3 3 2 1 5 0 2 2 2 1 5 5 Other cases 1 1 0 0 0 0 2 1 0 0 3 1