多国霍乱爆发，流行病学最新情况#33-2026年1月27日

Epidemiological Updaten.33, published27January20261 Inthisedition: •Overview•Global epidemiological update•WHO regional overviews•Focuson selectedsubregions andcountries Overview Dataasof28December2025 •In December 2025(epidemiological weeks49to52) a total of17327new cholera and acute watery diarrhoea(AWD) cases were reported from16countries, territoriesandareas (hereafter countries) acrossthreeWHOregions, showing a25% decrease fromNovember.In thisperiod,137cholera-related deathswerereportedglobally, a16% decrease from the previous month. •Cholera cases anddeaths in December 2025 were 65% and 74% lower than inDecember2024 (48 967 casesand 521 deaths across 25 countries). •From 1 January to28December2025, a cumulative total of614828cholera cases and7598deaths were reportedfrom 33 countries across fiveWHO regions, with the Eastern Mediterranean Region recording the highestnumbers, followed by the African Region, the South-East Asia Region,the Region of the Americas, and theWestern Pacific Region. No cases were reportedfrom the European Region during this period. •In recent years, conflict, mass displacement, disasters from natural hazards, and climate change have intensifiedoutbreaks, particularly in rural and flood-affected areas, where poor infrastructure and limited healthcare accessdelay treatment. These cross-border factors have made cholera outbreaks increasingly complex and harder tocontrol. •Thedata presented hereshould be interpretedwithcaution.Potential underreporting and reporting delaysmayaffect timeliness and accuracy, whilevariations in surveillance systems,standardcase definitions, and laboratorycapacitiescanlimit direct comparabilityamongcountries.These factors also influencethe global case fatality rate(CFR), requiring careful examination.Unless otherwisespecified, the term 'cholera cases'includesboth suspectedand confirmed cases. Data in this reportmay be adjusted retrospectivelyas more information becomes available.For the latest data, pleaseconsultWHO’sGlobal Cholera and AWD Dashboard. Globalepidemiological update InDecember2025, (epidemiological weeks49to52), a total of17327new cholera and AWD cases were reportedfrom16countries acrossthreeWHO regions, showing a25% decrease from the previous month. The EasternMediterranean Region (9198cases; fivecountries) reported the highest number of cases, followed by the AfricanRegion (8062cases,10countries),andthe South-East Asia Region (67cases,onecountry).Nocaseswere reportedfrom theWestern PacificRegionor the Region of the Americas. Duringthe same period,137cholera-related deaths werereported, representing a16% decreaseascompared toNovember2025. The highest number of deaths was recorded in theAfrican Region (132deaths;5countries), followedby the Eastern Mediterranean Region (5deaths;twocountries).No deaths were reported from the South-East AsiaRegion,the Western PacificRegion,orthe Region of the Americas. From 1 January to 28December2025, a cumulative total of614828cholera and AWD cases and7598deaths werereported globally across five WHO regions. The Eastern Mediterranean Region reported the highest case count (359052cases; six countries), followed by the African Region (242344cases, 22countries), the South-East Asia Region(6628cases; five countries), the Region of the Americas (5353cases; one country),and the Western Pacific Region(1451cases; one country).TheAfrican Regionreported the highest number ofdeaths(5315deaths),followed bytheEastern Mediterranean Region (2167deaths), the Region of the Americas (78deaths), the Western Pacific Region(27deaths),and the South-East Asia Region (11deaths). *Case and death numbers presented are not directly comparable due to differences in case definitions, reporting systemsandsurveillance capacity. All data are subject to verification andchange due to data availability and accessibility.Respective figures and numbers will be updated as more information becomes available. The data in Table 1 includes suspected,rapiddiagnostic test (RDT)-positive, and culture-confirmed cholera cases. As multiple countries report only total data on deaths, the reported CFR is calculated throughout based on the totalnumber of deaths reported. The Global Task Force on Cholera Control (GTFCC) recommends thatCFR be calculated using onlyhealthfacility deaths, with the number of community deathsreported separately.** Afghanistan and Myanmar report AWD cases. WHOregionaloverviews African Region InDecember2025, the African Region reported8062new cholera cases across 10countries, marking a4% decreasecompared withNovember.The highest number ofcases were reported fromtheDemocratic Republic of the Congo(4722),Mozambique (1046),andBurundi(800).Additionally, there were132cholera-related deaths, a9% decreasecompared with the previous month.The highest numbersof deathswerereported fromtheDemocratic Republic ofthe Congo (89),Mozambique (20),andAngola (15). From 1 January to 28December2025, a total of 242344cholera cases were rep