Epidemiologicalalert–SeasonalinfluenzaandotherrespiratoryvirusesinthesouthernhemisphereWiththestartofthepeakseasonofinfluenzaandotherrespiratoryvirusesintheSouthernHemisphereoftheAmericas,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.
YellowFever-SouthAmericaBetweenJanuaryandMarch,,confirmedcasesofyellowfeverinhumanshavebeenreported,ofwhichhaveresultedindeathThesecaseshavebeenreportedin:thePlurinationalStateofBolivia,withonefatalcaseBrazilwithcases,includingfatalcasesColombiawithcases,includingfatalcasesandPeruwithcases,includingeightfatalcasesOPS
Between January 1 and March 16, 2025, 131 confirmed cases of yellow fever in humans have been reported, of which 53 have resulted in death. These cases have been reported in: the Plurinational State of Bolivia, with one fatal case; Brazil with 81 cases, including 31 fatal cases; Colombia with 31 cases, including 13 fatal cases; and Peru with 18 cases, including eight fatal cases.
Between January 1 and March 16, 2025, 131 confirmed cases of yellow fever in humans have been reported, of which 53 have resulted in death. These cases have been reported in: the Plurinational State of Bolivia, with one fatal case; Brazil with 81 cases, including 31 fatal cases; Colombia with 31 cases, including 13 fatal cases; and Peru with 18 cases, including eight fatal cases.
Oropouchevirus-LatinAmericaThereareoutbreaksofOropouchefeverinpartsofBrazil,Bolivia,Colombia,Ecuador,Guyana,Peru,andCuba(seemap)
BetweenstJanuaryandthOctober,caseswerereported
Oropouchefeverisspreadbythebiteofinfectedmidges(smallflies)andmosquitoes
Illnesscanoccurinpeopleofanyageandisoftenmistakenfordengue
Travelerstoaffectedareasshouldtakestepstoavoidbugbites
Travelersshouldseekmedicalcareiftheydevelophighfever,headache,muscleaches,stiffjoints,nausea,vomiting,chills,orsensitivitytolightduringoraftertravelometimesvomitinganddiarrheaarealsoreportedOMS-WHO
There are outbreaks of Oropouche fever in parts of Brazil, Bolivia, Colombia, Ecuador, Guyana, Peru, and Cuba (see map).
Between 1st January and 11th October, 10275 cases were reported
Oropouche fever is spread by the bite of infected midges (small flies) and mosquitoes.
Illness can occur in people of any age and is often mistaken for dengue.
Travelers to affected areas should take steps to avoid bug bites.
Travelers should seek medical care if they develop high fever, headache, muscle aches, stiff joints, nausea, vomiting, chills, or sensitivity to light during or after travel.ometimes vomiting and diarrhea are also reported."
There are outbreaks of Oropouche fever in parts of Brazil, Bolivia, Colombia, Ecuador, Guyana, Peru, and Cuba (see map).
Between 1st January and 11th October, 10275 cases were reported
Oropouche fever is spread by the bite of infected midges (small flies) and mosquitoes.
Illness can occur in people of any age and is often mistaken for dengue.
Travelers to affected areas should take steps to avoid bug bites.
Travelers should seek medical care if they develop high fever, headache, muscle aches, stiff joints, nausea, vomiting, chills, or sensitivity to light during or after travel.ometimes vomiting and diarrhea are also reported."
YellowFever-SouthAmericaBetweenJanuaryandSeptember:
InBrazil,therewereconfirmedcasesinhumans(died)inAmazonas,MinasGeraisandSaoPaulo
BetweenJulyandJune,,eventsinvolvingdeadmonkeyswerereported,ofwhichwerelaboratory-confirmedinthestatesofMinasGerais()andRioGrandedoSul()
InBolivia,confirmedpositivecasesweredetected(died):
ThecaseshadaprobableplaceofexposureinthedepartmentofLaPazinthemunicipalitiesofCaranavi(n=fatalcases),Guanay(n=case),themunicipalityofSanBuenaventura(n=fatalcase)andthemunicipalityofPalosBlancos(n=case)andinthedepartmentofSantaCruz,municipalityofPorongo(n=cases)Onlyfourofthecaseswerevaccinated
InPeru,caseswereconfirmedinmenbetweenandyearsold(died)ThecaseswerereportedinthedepartmentsofHuanuco(),Junin(),MadredeDios(),SanMartin(),Ucayali()
InColombia,confirmedcaseswerereported(died)AllweremenbetweenandyearsoldTheaffecteddepartmentswereCaqueta(),Huila(),Narino(),Putumayo(),Vaupes()
Allthecasesmentionedherehadahistoryofexposuretowildand/orforestedareas,duetoagriculturalworkactivities,amongothersOPS
Between January and September 2024:
In Brazil, there were 3 confirmed cases in humans (2 died) in Amazonas, Minas Gerais and Sao Paulo.
Between July 2023 and June 2024, 1,790 events involving dead monkeys were reported, of which 11 were laboratory-confirmed in the states of Minas Gerais (5) and Rio Grande do Sul (6).
In Bolivia, 7 confirmed positive cases were detected (3 died):
The cases had a probable place of exposure in the department of La Paz in the municipalities of Caranavi (n= 2 fatal cases), Guanay (n= 1 case), the municipality of San Buenaventura (n= 1 fatal case) and the municipality of Palos Blancos (n= 1 case); and in the department of Santa Cruz, municipality of Porongo (n= 2 cases). Only four of the cases were vaccinated.
In Peru, 18 cases were confirmed in men between 18 and 83 years old (9 died). The cases were reported in the departments of Huánuco (1), Junín (3), Madre de Dios (3), San Martín (10), Ucayali (1).
In Colombia, 8 confirmed cases were reported (5 died). All were men between 18 and 66 years old. The affected departments were Caquetá (1), Huila (1), Nariño (1), Putumayo (4), Vaupés (1).
All the cases mentioned here had a history of exposure to wild and/or forested areas, due to agricultural work activities, among others.
Between January and September 2024:
In Brazil, there were 3 confirmed cases in humans (2 died) in Amazonas, Minas Gerais and Sao Paulo.
Between July 2023 and June 2024, 1,790 events involving dead monkeys were reported, of which 11 were laboratory-confirmed in the states of Minas Gerais (5) and Rio Grande do Sul (6).
In Bolivia, 7 confirmed positive cases were detected (3 died):
The cases had a probable place of exposure in the department of La Paz in the municipalities of Caranavi (n= 2 fatal cases), Guanay (n= 1 case), the municipality of San Buenaventura (n= 1 fatal case) and the municipality of Palos Blancos (n= 1 case); and in the department of Santa Cruz, municipality of Porongo (n= 2 cases). Only four of the cases were vaccinated.
In Peru, 18 cases were confirmed in men between 18 and 83 years old (9 died). The cases were reported in the departments of Huánuco (1), Junín (3), Madre de Dios (3), San Martín (10), Ucayali (1).
In Colombia, 8 confirmed cases were reported (5 died). All were men between 18 and 66 years old. The affected departments were Caquetá (1), Huila (1), Nariño (1), Putumayo (4), Vaupés (1).
All the cases mentioned here had a history of exposure to wild and/or forested areas, due to agricultural work activities, among others.
YellowFever-BoliviaInBolivia,in,untilepidemiologicalweek(EW),casesofyellowfeverwereconfirmed,inpeoplebetweenandyearsofage,ofwhichdied
Onlytwoofthecaseshadavaccinationhistory,oneverbalandtheotherwithavaccinationcardallhadahistoryofmigrationfromwild,forestedareas,duetoworkactivitiesandothers
RegardingthetwopeopleconfirmedwiththediseaseinthemunicipalityofPorongo,oneyearsoldandtheotheryearsold,thecontagionoccurredintheurbanarea
TheendemicregionsforthediseaseinBoliviacorrespondtothedepartmentsofBeni,SantaCruz,thetropicsofCochabamba,Pando,andthenorthofLaPazFundacioniO
In Bolivia, in 2024, until epidemiological week (EW) 35, 7 cases of yellow fever were confirmed, in people between 15 and 64 years of age, of which 3 died.
Only two of the cases had a vaccination history, one verbal and the other with a vaccination card; all had a history of migration from wild, forested areas, due to work activities and others.
Regarding the two people confirmed with the disease in the municipality of Porongo, one 25 years old and the other 28 years old, the contagion occurred in the urban area.
The endemic regions for the disease in Bolivia correspond to the departments of Beni, Santa Cruz, the tropics of Cochabamba, Pando, and the north of La Paz.
In Bolivia, in 2024, until epidemiological week (EW) 35, 7 cases of yellow fever were confirmed, in people between 15 and 64 years of age, of which 3 died.
Only two of the cases had a vaccination history, one verbal and the other with a vaccination card; all had a history of migration from wild, forested areas, due to work activities and others.
Regarding the two people confirmed with the disease in the municipality of Porongo, one 25 years old and the other 28 years old, the contagion occurred in the urban area.
The endemic regions for the disease in Bolivia correspond to the departments of Beni, Santa Cruz, the tropics of Cochabamba, Pando, and the north of La Paz.
Oropouchevirus-LatinAmericaThereareoutbreaksofOropouchefeverinpartsofBrazil,Bolivia,Colombia,Peru,andCuba(seemap)
BetweenstJanuaryandthJuly,caseswerereported
Oropouchefeverisspreadbythebiteofinfectedmidges(smallflies)andmosquitoes
Illnesscanoccurinpeopleofanyageandisoftenmistakenfordengue
Travelerstoaffectedareasshouldtakestepstoavoidbugbites
Travelersshouldseekmedicalcareiftheydevelophighfever,headache,muscleaches,stiffjoints,nausea,vomiting,chills,orsensitivitytolightduringoraftertravelometimesvomitinganddiarrheaarealsoreportedOMS-WHO
There are outbreaks of Oropouche fever in parts of Brazil, Bolivia, Colombia, Peru, and Cuba (see map).
Between 1st January and 20th July, 8078 cases were reported
Oropouche fever is spread by the bite of infected midges (small flies) and mosquitoes.
Illness can occur in people of any age and is often mistaken for dengue.
Travelers to affected areas should take steps to avoid bug bites.
Travelers should seek medical care if they develop high fever, headache, muscle aches, stiff joints, nausea, vomiting, chills, or sensitivity to light during or after travel.ometimes vomiting and diarrhea are also reported."
There are outbreaks of Oropouche fever in parts of Brazil, Bolivia, Colombia, Peru, and Cuba (see map).
Between 1st January and 20th July, 8078 cases were reported
Oropouche fever is spread by the bite of infected midges (small flies) and mosquitoes.
Illness can occur in people of any age and is often mistaken for dengue.
Travelers to affected areas should take steps to avoid bug bites.
Travelers should seek medical care if they develop high fever, headache, muscle aches, stiff joints, nausea, vomiting, chills, or sensitivity to light during or after travel.ometimes vomiting and diarrhea are also reported."
Oropouchevirus-LatinAmericaThereareoutbreaksofOropouchefeverinpartsofBrazil,Bolivia,Colombia,Peru,andCuba(seemap)
Oropouchefeverisspreadbythebiteofinfectedmidges(smallflies)andmosquitoes
Illnesscanoccurinpeopleofanyageandisoftenmistakenfordengue
Travelerstoaffectedareasshouldtakestepstoavoidbugbites
Travelersshouldseekmedicalcareiftheydevelophighfever,headache,muscleaches,stiffjoints,nausea,vomiting,chills,orsensitivitytolightduringoraftertravelometimesvomitinganddiarrheaarealsoreportedProMedMail
There are outbreaks of Oropouche fever in parts of Brazil, Bolivia, Colombia, Peru, and Cuba (see map).
Oropouche fever is spread by the bite of infected midges (small flies) and mosquitoes.
Illness can occur in people of any age and is often mistaken for dengue.
Travelers to affected areas should take steps to avoid bug bites.
Travelers should seek medical care if they develop high fever, headache, muscle aches, stiff joints, nausea, vomiting, chills, or sensitivity to light during or after travel.ometimes vomiting and diarrhea are also reported."
There are outbreaks of Oropouche fever in parts of Brazil, Bolivia, Colombia, Peru, and Cuba (see map).
Oropouche fever is spread by the bite of infected midges (small flies) and mosquitoes.
Illness can occur in people of any age and is often mistaken for dengue.
Travelers to affected areas should take steps to avoid bug bites.
Travelers should seek medical care if they develop high fever, headache, muscle aches, stiff joints, nausea, vomiting, chills, or sensitivity to light during or after travel.ometimes vomiting and diarrhea are also reported."
Malaria-BoliviaBolivianhealthauthoritieshavereportedcasesofmalariainElSena,provinceofMadredeDios(casesofmalariaduetoPlasmodiumvivaxandduetoPlasmodiumfalciparum)FundacioniO
Bolivian health authorities have reported 44 cases of malaria in El Sena, province of Madre de Dios (34 cases of malaria due to Plasmodium vivax and 10 due to Plasmodium falciparum).
Bolivian health authorities have reported 44 cases of malaria in El Sena, province of Madre de Dios (34 cases of malaria due to Plasmodium vivax and 10 due to Plasmodium falciparum).
Rabies-BoliviaAfteralmostyears,ChuquisacabreaksthehistoricalrecordforcasesofcaninerabiesThetotalnumberforreaches,onemorethanin,whichhadthehighestnumberofinfections()
ProMedMail
After almost 20 years, Chuquisaca breaks the historical record for cases of canine rabies. The total number for 2023 reaches 36, one more than in 2005, which had the highest number of infections (35).
After almost 20 years, Chuquisaca breaks the historical record for cases of canine rabies. The total number for 2023 reaches 36, one more than in 2005, which had the highest number of infections (35).
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.
