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Ebola, Mpox and Oropouche outbreaks

An Ebola outbreak has been reported in Democratic Republic of Congo. Multi-country outbreaks of mpox clade I and Oropouche are ongoing. Keep up to date with these links if you are travelling to affected areas.

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09 September 2025

Oropouche virus disease in Brazil

As of 8 September 2025, a total of 11,967 confirmed cases of Oropouche virus disease and seven deaths (five confirmed, two under investigation) have been reported in Brazil for 2025. The most affected state is Espirito Santo with 6,323 cases and one death, followed by Rio De Janeiro with 2,500 cases and five deaths, and Minas Gerais with 1,367 cases. Please see our Topics in Brief article for further details on Oropouche virus disease.

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09 September 2025

Dengue in Samoa

As of 9 September 2025, a total of 12,025 clinically diagnosed dengue cases (including 3,630 laboratory confirmed cases), and six deaths, have been reported in Samoa since January 2025. Co-circulation of DENV-1 and DENV-2 serotypes have been identified. Please see our Topics in Brief article for further details on dengue.

Take usual precautions
09 September 2025

Ebola virus disease in DRC

As of 6 September 2025, a total of 37 Ebola virus disease cases (five confirmed) and 15 deaths have now been reported from Bulape Health Zone, Kasai Province. Please see our Topics in Brief article for further details on Ebola disease.

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08 September 2025

Chikungunya in Italy

As of 3 September 2025, Italy has now reported a total of 107 locally acquired chikungunya cases in 2025. The highest number of cases (85) is currently reported in Carpi, San Prospero and Soliera. Please see our Topics in Brief article for further details on chikungunya.

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Dengue in American Samoa

As of 2 September 2025, a total of 81 confirmed dengue cases have been reported in American Samoa since July 2025. Co-circulation of DENV-1 and DENV-2 serotypes have been identified. Please see our Topics in Brief article for further details on dengue.

Take usual precautions
05 September 2025

Dengue in Tuvalu

As of 2 September 2025, a total of 131 confirmed dengue cases have been reported in Tuvalu since June 2025. DENV-2 serotype has been identified. Please see our Topics in Brief article for further details on dengue.

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05 September 2025

Dengue in French Polynesia

As of 2 September 2025, a total of 2,577 dengue cases (2,312 confirmed and 265 probable) have been reported in French Polynesia since November 2023. Please see our Topics in Brief article for further details on dengue.

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05 September 2025

Dengue in Kiribati

As of 2 September 2025, a total of 446 confirmed and 1,213 suspected dengue cases, with one confirmed death, have been reported in Kiribati since April 2025. Co-circulation of DENV-1 and DENV-2 serotypes have been identified. Please see our Topics in Brief article for further details on dengue.

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04 September 2025

Chikungunya in France

As of 3 September 2025, a total of 301 locally acquired cases of chikungunya have been reported since the beginning of 2025. Cases have been reported from Provence-Alpes-Côte d'Azur, Corsica, Occitanie, Auvergne-Rhône-Alpes, Grand Est, Bourgogne-Franche-Comté and Nouveille-Aquitaine. Please see our Topics in Brief article for further details on chikungunya.

Take usual precautions
04 September 2025

West Nile virus in France

As of 3 September 2025, 20 locally acquired cases of West Nile virus were reported from France. Cases have been reported from Provence Alpes-Côte d'Azur, Occitanie, and for the first time Île-de-France and Auvergne-Rhône-Alpes. Please see our Topics in Brief article for further details on West Nile virus.

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