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Ebola, Marburg and Oropouche outbreaks

Ebola cases continue to be reported in Democratic Republic of Congo. A case of Marburg virus disease has been reported in Uganda and a multi-country outbreak of Oropouche is ongoing. Keep up to date with the news and outbreak information if you are travelling to affected areas.

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13 August 2026

Dengue in Malaysia

As of 12 August 2026, a total of 56,319 dengue cases have been reported in Malaysia during 2026. Please see our Topics in Brief article for further details on dengue.

Take usual precautions
13 August 2026
France + Occitanie
Provence Alpes-Côte d’Azur

West Nile virus in France

As of 10 August  2026, a total of six locally acquired West Nile virus cases have now been reported during 2026 in the Occitanie (Aude and Pyrénées-Orientales) and Provence-Alpes-Côte d'Azur (Bouches-du-Rhône and Vaucluse) regions of France. Please see our Topics in Brief article for further details on West Nile virus.

Take usual precautions
13 August 2026

West Nile virus in Italy

As of 12 August 2026, a total of 224 locally acquired cases of West Nile virus, with seven deaths (one in an imported case), have now been reported from 55 provinces in 16 regions of Italy during 2026. Please see our Topics in Brief article for further details on West Nile virus.

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13 August 2026
France + Gironde
Occitanie

Chikungunya in France

As of 10 August 2026, a total of 15 locally acquired chikungunya cases have been reported during 2026 in the Nouvelle-Aquitaine (Gironde) and Occitanie (Tarn) regions of France. Please see our Topics in Brief article for further details on chikungunya.

Take usual precautions
13 August 2026
Italy + Emilia-Romagna
Lazio
Marche
Lombardy

Usutu virus in Italy

As of 12 August 2026, a total of eight Usutu virus cases have been reported in four regions of Italy during 2026.

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12 August 2026
USA

West Nile virus in USA

As of 11 August 2026, a total of 181 human cases of West Nile virus have been reported across 30 states in the United States this year. Of these, 129 cases were reported to be the neuroinvasive form. The highest number of cases have been reported in Arizona (73 cases), Texas (23 cases), and California (18 cases). Please see our Topics in Brief article for further details on West Nile virus.

Take usual precautions
11 August 2026

Chikungunya in French Guiana

As of 2 August 2026, 1,418 confirmed chikungunya cases have been reported in French Guiana this year. Please see our Topics in Brief article for further details on chikungunya.

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11 August 2026
Democratic Republic of the Congo + Ituri
North Kivu
South Kivu
Tshopo
Haut-Uele

Ebola disease in DRC

As of 8 August 2026, a total of 4,294 confirmed Ebola disease (Bundibugyo virus) cases, and 1,960 deaths, have now been reported across five provinces: Ituri, North Kivu, South Kivu, Tshopo and Haut-Uele. Please see our Topics in Brief article for further details on Ebola disease.

Take extra precautions
11 August 2026

Dengue in Vanuatu

As of 10 August 2026, 76 cases of dengue have been confirmed in Vanuatu this year. DENV-1 remains the confirmed circulating serotype. Please see our Topics in Brief article for further details on dengue.

Take usual precautions
07 August 2026

Hantavirus in France

On 6 August 2026, one case of Hantavirus Andes virus (ANDV) was reported in a French-Argentine citizen who travelled through France in late July. The case is now isolating in Spain and is asymptomatic. Please see our Topics in Brief article for further details on hantavirus.

Take usual precautions
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Advice Line for health professionals

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