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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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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.

Take usual precautions
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
06 August 2026

Dengue in Bangladesh

As of 6 August 2026, a total of 17,880 dengue cases (59 deaths) have been reported in Bangladesh during 2026. Dhaka division has reported the highest number of cases, followed by Barishal, Chattogram and Khulna divisions. Please see our Topics in Brief article for further details on dengue.

Take usual precautions
06 August 2026

West Nile virus in Italy

As of 5 August 2026, 139 locally acquired cases of West Nile virus have been reported in 50 provinces in Italy. Please see our Topics in Brief article for further details on West Nile virus.

Take usual precautions
06 August 2026
France + Nouvelle-Aquitaine
Occitanie

Chikungunya in France

As of 3 August 2026, seven locally acquired cases of chikungunya have been reported in Tam (Occitanie) and Gironde (Nouvelle-Aquitaine). Please see our Topics in Brief article for further details on chikungunya.

Take usual precautions
05 August 2026
Nicaragua + Managua

Chikungunya in Nicaragua

As of 3 August 2026, the US Centers for Disease Control and Prevention (CDC) have reported increased cases of chikungunya in Nicaragua, with most cases in Managua. Please see our Topics in Brief article for further details on chikunguna.

Take usual precautions
05 August 2026
USA + Virginia

Dengue in USA

On 4 August 2026, the Virginia Department of Health reported a confirmed dengue virus infection in a resident who did not have known travel outside of Virginia prior to disease onset. The case had been in close proximity to a recent internationally acquired dengue case. There is no evidence of continued transmission and no additional reports of locally acquired dengue cases.

Take usual precautions
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Advice Line for health professionals

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