NATIONALMEASLESALERTREACTIVATEDThisSaturday,theNationalMinistryofHealthpublishedanofficialbulletinannouncinganationalhealthalertformeaslesfollowingthediagnosisofatwo-year-and-four-month-oldchildinthemunicipalityofSantaElena,EntreRiosThiscasetriggeredtheepidemiologicalalert,whichcallsforstrengthenedsurveillance,vaccination,andearlyconsultationatthefirstsignofsymptoms
ThiscomeswithinaninternationalcontextinwhichtheAmericasregionisnolongermeasles-free,havinglostitsstatusasfreeofendemictransmission
DiarioPagina
- Diario Página12
- 07-12-2025
This Saturday, the National Ministry of Health published an official bulletin announcing a national health alert for measles following the diagnosis of a two-year-and-four-month-old child in the municipality of Santa Elena, Entre Ríos. This case triggered the epidemiological alert, which calls for strengthened surveillance, vaccination, and early consultation at the first sign of symptoms.
This comes within an international context in which the Americas region is no longer measles-free, having lost its status as free of endemic transmission.
This Saturday, the National Ministry of Health published an official bulletin announcing a national health alert for measles following the diagnosis of a two-year-and-four-month-old child in the municipality of Santa Elena, Entre Ríos. This case triggered the epidemiological alert, which calls for strengthened surveillance, vaccination, and early consultation at the first sign of symptoms.
This comes within an international context in which the Americas region is no longer measles-free, having lost its status as free of endemic transmission.
EpidemiologicalAlert:PertussisinArgentinaBetweenepidemiologicalweek(EW)andEWof,atotalof,suspectedcasesofpertussiswerereported,ofwhichwereconfirmedLaboratoryconfirmationwasobtainedinofthesecasesThenumberofconfirmedcasesexceedsthefiguresrecordedforthesameperiodsince,withtheexceptionof,whenahighernumberofcaseswasreported,mainlyintheprovinceofSaltaInaddition,sixdeathsduetothediseasewererecorded,allinchildrenundertwoyearsofageAlthoughcasesofpertussishavebeenreportedinjurisdictionsthisyear,theincreaseobservedcomparedtopreviousyearsismainlyconcentratedinTierradelFuego,BuenosAires,andtheAutonomousCityofBuenosAiresSafeandeffectivevaccinesareavailabletopreventinfectionbyBordetellapertussisHowever,aprogressivedeclineinvaccinationcoveragehasbeenobservedworldwide,regionally,andnationally,resultinginanaccumulationofsusceptibleindividualsGiventheincreaseinpertussiscasesobservedgloballyandregionally,healthteamsareurgedtostrengthenepidemiologicalsurveillance,earlydiagnosis,immediatereporting,andtheimplementationofpreventionandcontrolmeasures,withparticularemphasisonvaccinationBoletinepidemiologicoNacionalArgentinonumeroSE(aldeNoviembre)
- Boletín epidemiológico Nacional Argentino número 781 SE 44 (26 al 1 de Noviembre 2025)
- 10-11-2025
Between epidemiological week (EW) 1 and EW 44 of 2025, a total of 3,989 suspected cases of pertussis were reported, of which 456 were confirmed. Laboratory confirmation was obtained in 391 of these cases. The number of confirmed cases exceeds the figures recorded for the same period since 2020, with the exception of 2023, when a higher number of cases was reported, mainly in the province of Salta. In addition, six deaths due to the disease were recorded, all in children under two years of age. Although cases of pertussis have been reported in 19 jurisdictions this year, the increase observed compared to previous years is mainly concentrated in Tierra del Fuego, Buenos Aires, and the Autonomous City of Buenos Aires. Safe and effective vaccines are available to prevent infection by Bordetella pertussis. However, a progressive decline in vaccination coverage has been observed worldwide, regionally, and nationally, resulting in an accumulation of susceptible individuals. Given the increase in pertussis cases observed globally and regionally, health teams are urged to strengthen epidemiological surveillance, early diagnosis, immediate reporting, and the implementation of prevention and control measures, with particular emphasis on vaccination.
Between epidemiological week (EW) 1 and EW 44 of 2025, a total of 3,989 suspected cases of pertussis were reported, of which 456 were confirmed. Laboratory confirmation was obtained in 391 of these cases. The number of confirmed cases exceeds the figures recorded for the same period since 2020, with the exception of 2023, when a higher number of cases was reported, mainly in the province of Salta. In addition, six deaths due to the disease were recorded, all in children under two years of age. Although cases of pertussis have been reported in 19 jurisdictions this year, the increase observed compared to previous years is mainly concentrated in Tierra del Fuego, Buenos Aires, and the Autonomous City of Buenos Aires. Safe and effective vaccines are available to prevent infection by Bordetella pertussis. However, a progressive decline in vaccination coverage has been observed worldwide, regionally, and nationally, resulting in an accumulation of susceptible individuals. Given the increase in pertussis cases observed globally and regionally, health teams are urged to strengthen epidemiological surveillance, early diagnosis, immediate reporting, and the implementation of prevention and control measures, with particular emphasis on vaccination.
MEASLESINAMERICA´SREGIONAccordingtoareportreleasedbyPAHOonSeptember,,bySeptemberofthisyear,measlescaseshadalreadybeenconfirmedintheRegionoftheAmericasThemostaffectedcountrieswereCanada,with,cases,andMexico,with,casesOfthereporteddeaths,occurredinMexico
Themostaffectedagegroupwastoyears(%),followedbytoyears(%),andtoyears(%)
Accordingtothedatacollectedsofar,%ofcasesoccurredinunvaccinatedindividuals
TheimportanceofimmunizationisemphasizedinordertoreducenewmeaslescasesORGANIZACIONPANAMERICANADESALUD
- ORGANIZACION PANAMERICANA DE SALUD
- 23-09-2025
According to a report released by PAHO on September 19, 2025, by September of this year 11,313 measles cases had already been confirmed in the Region of the Americas. The most affected countries were Canada, with 4,489 cases, and Mexico, with 4,553 cases. Of the 23 reported deaths, 19 occurred in Mexico.
The most affected age group was 10 to 19 years (22%), followed by 20 to 29 years (19%), and 1 to 4 years (17%).
According to the data collected so far, 71% of cases occurred in unvaccinated individuals.
The importance of immunization is emphasized in order to reduce new measles cases.
According to a report released by PAHO on September 19, 2025, by September of this year 11,313 measles cases had already been confirmed in the Region of the Americas. The most affected countries were Canada, with 4,489 cases, and Mexico, with 4,553 cases. Of the 23 reported deaths, 19 occurred in Mexico.
The most affected age group was 10 to 19 years (22%), followed by 20 to 29 years (19%), and 1 to 4 years (17%).
According to the data collected so far, 71% of cases occurred in unvaccinated individuals.
The importance of immunization is emphasized in order to reduce new measles cases.
PAHOEpidemiologicalAlert–MeaslesintheRegionoftheAmericasBetweenepidemiologicalweek(EW)andEWof,atotalof,measlescasesanddeathswereconfirmedintheRegionoftheAmericas
Caseswerereportedin:
Argentina(),Belize(),Bolivia(),Brazil(),Canada(,,includingdeath),CostaRica(),UnitedStates(,,includingdeaths),Mexico(,,includingdeaths),andPeru()
Thistotalrepresentsa-foldincreasecomparedtothecasesreportedduringthesameperiodin
Inlightofthissituation,thePanAmericanHealthOrganization/WorldHealthOrganization(PAHO/WHO)urgesMemberStatestostrengthenvaccinationstrategies,enhanceepidemiologicalsurveillance,andensurearapidresponsetocasedetectionOPS
Between epidemiological week (EW) 1 and EW 24 of 2025, a total of 7,132 measles cases and 13 deaths were confirmed in the Region of the Americas.
Cases were reported in:
Argentina (34), Belize (34), Bolivia (60), Brazil (5), Canada (3,170, including 1 death), Costa Rica (1), United States (1,227, including 3 deaths), Mexico (2,597, including 9 deaths), and Peru (4).
This total represents a 29-fold increase compared to the 244 cases reported during the same period in 2024.
In light of this situation, the Pan American Health Organization / World Health Organization (PAHO/WHO) urges Member States to strengthen vaccination strategies, enhance epidemiological surveillance, and ensure a rapid response to case detection.
Between epidemiological week (EW) 1 and EW 24 of 2025, a total of 7,132 measles cases and 13 deaths were confirmed in the Region of the Americas.
Cases were reported in:
Argentina (34), Belize (34), Bolivia (60), Brazil (5), Canada (3,170, including 1 death), Costa Rica (1), United States (1,227, including 3 deaths), Mexico (2,597, including 9 deaths), and Peru (4).
This total represents a 29-fold increase compared to the 244 cases reported during the same period in 2024.
In light of this situation, the Pan American Health Organization / World Health Organization (PAHO/WHO) urges Member States to strengthen vaccination strategies, enhance epidemiological surveillance, and ensure a rapid response to case detection.
Seasonalinfluenzaandotherrespiratoryviruses-SouthernhemisphereWiththestartofthepeakseasonofinfluenzaandotherrespiratoryvirusesintheSouthernHemisphereoftheAmericas,PAHO/WHOrecommendsthatMemberStatesadjusttheirhealthservicepreparationandorganizationplanstoaddressapotentialhealthsystemoverloadOrganizacionPanamericanadelaSalud
- Organizacion Panamericana de la Salud
- 22-04-2025
With the start of the peak season of influenza and other respiratory viruses in the Southern Hemisphere of the Americas, PAHO/WHO recommends that Member States adjust their health service preparation and organization plans to address a potential health system overload.
With the start of the peak season of influenza and other respiratory viruses in the Southern Hemisphere of the Americas, PAHO/WHO recommends that Member States adjust their health service preparation and organization plans to address a potential health system overload.
Trichinosis-ArgentinaArgentinahasexperiencedtrichinosisoutbreaks,withassociatedcasesreportedbytheMinistryofHealthasoftheendofNovemberOutbreakshavebeenrecordedinseveralprovinces,includingCordoba,BuenosAires,Mendoza,Neuquen,SanLuisandSantaFeThemajorityofconfirmedandprobablecaseshavebeenrecordedinthecentralregionofthecountry
AnnualoutbreaksarereportedEspeciallyinnorthernprovinces(Cordoba),inrelationtotheconsumptionofporkfromclandestineslaughterhousesMorefrequentinwinter(autumn-spring),inrelationtothenon-useofrefrigerationchambersFundacioniO
Argentina has experienced 18 trichinosis outbreaks, with 528 associated cases reported by the Ministry of Health as of the end of November 2023. Outbreaks have been recorded in several provinces, including Córdoba, Buenos Aires, Mendoza, Neuquén, San Luis and Santa Fe. The majority of confirmed and probable cases have been recorded in the central region of the country.
Annual outbreaks are reported. Especially in northern provinces (Córdoba), in relation to the consumption of pork from clandestine slaughterhouses. More frequent in winter (autumn-spring), in relation to the non-use of refrigeration chambers.
Argentina has experienced 18 trichinosis outbreaks, with 528 associated cases reported by the Ministry of Health as of the end of November 2023. Outbreaks have been recorded in several provinces, including Córdoba, Buenos Aires, Mendoza, Neuquén, San Luis and Santa Fe. The majority of confirmed and probable cases have been recorded in the central region of the country.
Annual outbreaks are reported. Especially in northern provinces (Córdoba), in relation to the consumption of pork from clandestine slaughterhouses. More frequent in winter (autumn-spring), in relation to the non-use of refrigeration chambers.
Streptococcuspyogenes-ArgentinaDuring,confirmedcasesofinvasiveinfectionbyStreptococcuspyogeneswerereportedthroughoutthecountry,ofwhichdiedTheprovinceswiththehighestnumberofconfirmedcasesaccumulatedinareBuenosAires(),SantaFe(),Chubut()andTierradelFuego()Thenumberofcasesinrepresentsanincreaseof%overthesameperiodinOMS
During 2023, 118 confirmed cases of invasive infection by Streptococcus pyogenes were reported throughout the country, of which 16 died. The provinces with the highest number of confirmed cases accumulated in 2023 are Buenos Aires (35), Santa Fe (20), Chubut (10) and Tierra del Fuego (10). The number of cases in 2023 represents an increase of 281% over the same period in 2019.
During 2023, 118 confirmed cases of invasive infection by Streptococcus pyogenes were reported throughout the country, of which 16 died. The provinces with the highest number of confirmed cases accumulated in 2023 are Buenos Aires (35), Santa Fe (20), Chubut (10) and Tierra del Fuego (10). The number of cases in 2023 represents an increase of 281% over the same period in 2019.
Dengue-AmericasIn,betweenEWandEW,atotalof,,casesofdenguewerereported,withacumulativeincidencerateofcasesper,inhabitantsInthisyear,ofthe,,reporteddenguecases,,(%)werelaboratoryconfirmedand,(%)wereclassifiedasseveredengueThehighestnumberofdenguecaseswasobservedinBrazilwith,,cases,followedbyPeruwith,casesandBoliviawith,casesOMS
In 2023, between EW 1 and EW 24, a total of 2,102,848 cases of dengue were reported, with a cumulative incidence rate of 214 cases per 100,000 inhabitants. In this year, of the 2,102,848 reported dengue cases, 827,493 (39.3%) were laboratory confirmed and 3,201 (0.15%) were classified as severe dengue. The highest number of dengue cases was observed in Brazil with 1,515,460 cases, followed by Peru with 169,504 cases and Bolivia with 133,452 cases.
Argentina, Bolivia, Brasil, Chile, Colombia, Paraguay, Perú, Uruguay, Venezuela, Antártida, Ecuador, Guayana, Guayana Francesa, Islas Georgias del Sur, Islas Malvinas, Suriname
In 2023, between EW 1 and EW 24, a total of 2,102,848 cases of dengue were reported, with a cumulative incidence rate of 214 cases per 100,000 inhabitants. In this year, of the 2,102,848 reported dengue cases, 827,493 (39.3%) were laboratory confirmed and 3,201 (0.15%) were classified as severe dengue. The highest number of dengue cases was observed in Brazil with 1,515,460 cases, followed by Peru with 169,504 cases and Bolivia with 133,452 cases.
Dengue,Zika,Chikungunya-AmericasDuring,severalcountriesintheregionregisteredincreasesinthenumberofcasesofdengue,Zika,andchikungunya,abovewhatwasreportedinDuringthefirstmonthsof,outbreaksofchikungunyaanddenguefeverwererecordedimportantmagnitudeinSouthAmericaOMS
During 2022, several countries in the region registered increases in the number of cases of dengue, Zika, and chikungunya, above what was reported in 2021. During the first months of 2023, outbreaks of chikungunya and dengue fever were recorded. important magnitude in South America.
Argentina, Bolivia, Brasil, Chile, Colombia, Paraguay, Perú, Uruguay, Venezuela, Antártida, Ecuador, Guayana, Guayana Francesa, Islas Georgias del Sur, Islas Malvinas, Suriname
During 2022, several countries in the region registered increases in the number of cases of dengue, Zika, and chikungunya, above what was reported in 2021. During the first months of 2023, outbreaks of chikungunya and dengue fever were recorded. important magnitude in South America.
Influenzaandotherrespiratoryviruses-RegionoftheAmericasThereisanincreaseintheactivityofrespiratoryvirusesatpre-pandemiclevelsandinassociatedhospitalizations,predominantlyamongchildrenunderyearsofage,intheAndeansubregionandthesoutherncone
OMS
There is an increase in the activity of respiratory viruses at pre-pandemic levels and in associated hospitalizations, predominantly among children under 2 years of age, in the Andean subregion and the southern cone
Argentina, Bolivia, Brasil, Chile, Colombia, Paraguay, Perú, Uruguay, Venezuela, Antártida, Ecuador, Guayana, Guayana Francesa, Islas Georgias del Sur, Islas Malvinas, Suriname
There is an increase in the activity of respiratory viruses at pre-pandemic levels and in associated hospitalizations, predominantly among children under 2 years of age, in the Andean subregion and the southern cone
Avianinfluenza(HN)-outbreaksintheRegionoftheAmericasExpansionofoutbreaksofhighlypathogenicavianinfluenzainbirds(todatetheyhavebeenreportedincountriesoftheRegion),andconfirmationofhumaninfectionscausedbyinfluenzaA(HN)inLatinAmericaandtheCaribbeanTheidentifiedoutbreaksarelocatedmainlyintheareasofthePacificflyway
OMS
Expansion of outbreaks of highly pathogenic avian influenza in birds (to date they have been reported in 16 countries of the Region), and confirmation of 3 human infections caused by influenza A(H5N1) in Latin America and the Caribbean. The identified outbreaks are located mainly in the areas of the Pacific flyway.
Argentina, Bolivia, Brasil, Chile, Colombia, Paraguay, Perú, Uruguay, Venezuela, Antártida, Ecuador, Guayana, Guayana Francesa, Islas Georgias del Sur, Islas Malvinas, Suriname
Expansion of outbreaks of highly pathogenic avian influenza in birds (to date they have been reported in 16 countries of the Region), and confirmation of 3 human infections caused by influenza A(H5N1) in Latin America and the Caribbean. The identified outbreaks are located mainly in the areas of the Pacific flyway.
Poliovirus-AmericasPerunotifiedaconfirmedcaseofvaccine-derivedpoliovirustype(VDPV)onMarch,Thecaseisa-month-oldboy,belongingtoanindigenouscommunityintheManserichedistrictintheDatemdelMaranonprovinceoftheLoretodepartment,withnohistoryofvaccinationortravelhistorybeforetheonsetofsymptomsOPS
Peru notified a confirmed case of vaccine-derived poliovirus type 1 (VDPV 1) on March 21, 2023. The case is a 16-month-old boy, belonging to an indigenous community in the Manseriche district in the Datem del Marañón province of the Loreto department, with no history of vaccination or travel history before the onset of symptoms
Argentina, Bolivia, Brasil, Chile, Colombia, Paraguay, Perú, Uruguay, Venezuela, Antártida, Ecuador, Guayana, Guayana Francesa, Islas Georgias del Sur, Islas Malvinas, Suriname
Peru notified a confirmed case of vaccine-derived poliovirus type 1 (VDPV 1) on March 21, 2023. The case is a 16-month-old boy, belonging to an indigenous community in the Manseriche district in the Datem del Marañón province of the Loreto department, with no history of vaccination or travel history before the onset of symptoms
Poliovirus-AmericasPerunotifiedaconfirmedcaseofvaccine-derivedpoliovirustype(VDPV)onMarch,Thecaseisa-month-oldboy,belongingtoanindigenouscommunityintheManserichedistrictintheDatemdelMaranonprovinceoftheLoretodepartment,withnohistoryofvaccinationortravelhistorybeforetheonsetofsymptomsOPS
Peru notified a confirmed case of vaccine-derived poliovirus type 1 (VDPV 1) on March 21, 2023. The case is a 16-month-old boy, belonging to an indigenous community in the Manseriche district in the Datem del Marañón province of the Loreto department, with no history of vaccination or travel history before the onset of symptoms
Argentina, Bolivia, Brasil, Chile, Colombia, Paraguay, Perú, Uruguay, Venezuela, Antártida, Ecuador, Guayana, Guayana Francesa, Islas Georgias del Sur, Islas Malvinas, Suriname
Peru notified a confirmed case of vaccine-derived poliovirus type 1 (VDPV 1) on March 21, 2023. The case is a 16-month-old boy, belonging to an indigenous community in the Manseriche district in the Datem del Marañón province of the Loreto department, with no history of vaccination or travel history before the onset of symptoms
Avianinfluenza(HN)-outbreaksintheRegionoftheAmericasExpansionofoutbreaksofhighlypathogenicavianinfluenzainbirds(todatetheyhavebeenreportedincountriesintheRegion),confirmationofthefirsthumaninfectioncausedbyinfluenzaA(HN)inLatinAmericaandtheCaribbean,andincreaseincasesinmammals
OMS
Expansion of outbreaks of highly pathogenic avian influenza in birds (to date they have been reported in 16 countries in the Region), confirmation of the first human infection caused by influenza A(H5N1) in Latin America and the Caribbean, and increase in cases in mammals
Argentina, Bolivia, Brasil, Chile, Colombia, Paraguay, Perú, Uruguay, Venezuela, Antártida, Ecuador, Guayana, Guayana Francesa, Islas Georgias del Sur, Islas Malvinas, Suriname
Expansion of outbreaks of highly pathogenic avian influenza in birds (to date they have been reported in 16 countries in the Region), confirmation of the first human infection caused by influenza A(H5N1) in Latin America and the Caribbean, and increase in cases in mammals
Chikungunya-AmericasInthefirsteightepidemiologicalweeksof,,casesanddeathsfromchikungunyawerereported,withthehighestincidencerates
inParaguay(,casesper,inhabitants)andBrazil(casesper,inhabitants)OPS
In the first eight epidemiological weeks of 2023, 115,539 cases and 33 deaths from chikungunya were reported, with the highest incidence rates
in Paraguay (1,128 cases per 100,000 inhabitants) and Brazil (14.2 cases per 100,000 inhabitants).
Argentina, Bolivia, Brasil, Chile, Colombia, Paraguay, Perú, Uruguay, Venezuela, Antártida, Ecuador, Guayana, Guayana Francesa, Islas Georgias del Sur, Islas Malvinas, Suriname
In the first eight epidemiological weeks of 2023, 115,539 cases and 33 deaths from chikungunya were reported, with the highest incidence rates
in Paraguay (1,128 cases per 100,000 inhabitants) and Brazil (14.2 cases per 100,000 inhabitants).
Dengue,Zika,Chikungunya-AmericasDuring,severalcountriesintheregionregisteredincreasesinthenumberofcasesofdengue,Zikaandchikungunya,abovewhatwasreportedinProMedMail
During 2022, several countries in the region registered increases in the number of cases of dengue, Zika and chikungunya, above what was reported in 2021
Argentina, Bolivia, Brasil, Chile, Colombia, Paraguay, Perú, Uruguay, Venezuela, Antártida, Ecuador, Guayana, Guayana Francesa, Islas Georgias del Sur, Islas Malvinas, Suriname
During 2022, several countries in the region registered increases in the number of cases of dengue, Zika and chikungunya, above what was reported in 2021
Zikavirus-AmericasThecumulativesuspectedandconfirmedcasesofZikaarepresented,withaclearpredominanceofcasesinBrazil,with,suspectedcasesand,confirmedonesProMedMail
The 2022 cumulative suspected and confirmed cases of Zika are presented, with a clear predominance of cases in Brazil, with 29,117 suspected cases and 2,656 confirmed ones.
Argentina, Bolivia, Brasil, Chile, Colombia, Paraguay, Perú, Uruguay, Venezuela, Antártida, Ecuador, Guayana, Guayana Francesa, Islas Georgias del Sur, Islas Malvinas, Suriname
The 2022 cumulative suspected and confirmed cases of Zika are presented, with a clear predominance of cases in Brazil, with 29,117 suspected cases and 2,656 confirmed ones.
