Oropouche virus disease – French Guiana, France

On 30 September 2020, the French Guiana Regional Health Agency (ARS) reported the first detection of Oropouche virus (OROV) in French Guiana. On 22 September 2020 the Pasteur Institute in Cayenne (a member of the French National Reference Laboratory for arboviruses) notified the France IHR National Focal Point of seven laboratory-confirmed cases of Oropouche virus infection in the village of Saül. These cases were identified following clinical investigations of an unusually high number of dengue-like illnesses in the village. Between 11 August and 25 September, there were 37 clinically-compatible cases of Oropouche virus disease identified in Saül. The results of serology for dengue, chikungunya, and Zika were negative, and seven of nine cases tested positive for OROV by reverse transcriptase polymerase chain reaction (RT-PCR).

Among the 37 clinically-compatible cases, most cases are male (60%) and the median age is 36 years (range 3-82 years). The most represented age range is 15 to 54-years-old (19 cases) followed by 0 to 14-years-old (10 cases). A peak of cases was observed in mid-September however, the outbreak investigation remains ongoing.

Monkeypox – Democratic Republic of the Congo

From 1 January through 13 September 2020, a total of 4,594 suspected cases of monkeypox, including 171 deaths (case fatality ratio 3.7%), have been reported in 127 health zones from 17 out of 26 provinces in the Democratic Republic of the Congo. The first epidemic peak was observed at the beginning of March 2020 (epi week 10), with 136 cases reported weekly (Figure1). From 1 January through 7 August, the Institut National de Recherche Biomédicale (INRB) received 80 samples from suspected cases of monkeypox, of which 39 samples were confirmed positive by polymerase chain reaction. Four out of the 80 specimens were skin lesions (crusts/vesicles), the remaining samples were blood. There is no further information at this time regarding the outcome of these 80 patients whose samples were tested. Confirmatory testing remains ongoing.

During the same period in 2019, 3,794 suspected cases and 73 deaths (CFR 1.9%) were reported in 120 health zones from 16 provinces while a total of 2,850 suspected cases (CFR 2.1%) were reported in 2018.

Chikungunya – Chad

On 28 August 2020, the National IHR Focal Point of Chad notified WHO of an outbreak of chikungunya in Abéché, eastern Chad.

Yellow fever – French Guiana, France

On 23 July 2020, the France IHR National Focal Point reported a confirmed autochthonous (locally acquired) case of yellow fever in a 14-year-old male in French Guiana. On 17 July 2020, the case was laboratory confirmed at the French National Reference Centre for arboviruses, Institute Pasteur Cayenne.

The case-patient had severe disability, and developed dengue-like symptoms on 12 July. On 16 July, he was hospitalized in an intensive care unit in Cayenne, French Guiana, with consciousness disorders and acute liver failure, and died on 19 July.