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World Updates

Human infection with avian influenza A(H7N9) virus – China

On 23 February 2016, the Department of Health (DH), Hong Kong Special Administrative Region (SAR) notified WHO of an additional laboratory-confirmed case of human infection with avian influenza A (H7N9) virus. The patient, a resident of Hong Kong SAR, China, is a 60-year-old man with previously good health condition. On February 8, he developed symptoms and, on 11 February, consulted a private doctor. The patient was then admitted to hospital. His nasopharyngeal aspirate collected on 12 February initially tested negative for influenza A virus. On 15 February, the patient was discharged.

Circulating vaccine-derived poliovirus – Lao People’s Democratic Republic

Between 6 and 16 February 2016, the National IHR Focal Point (NFP) of Lao People’s Democratic Republic (PDR) notified WHO of 3 additional cases of vaccine-derived poliovirus type 1 (VDPV1). Neither of the two cases received oral polio vaccine (OPV). On 3 February 2016, the National Institute of Infectious Diseases, Japan reported that stool samples for both cases tested positive for type 1 circulating vaccine-derived polio virus (cVDPV1). There is no epidemiological link between the two cases.

Dengue Fever – Uruguay

On 13 February 2016, the National IHR Focal Point (IHR NFP) of Uruguay notified PAHO/WHO a case of dengue. The case is a 31-year-old female from Montevideo who developed fever and joint pain on 5 February. On 9 February, she sought medical attention and, on the same day, her samples were collected for laboratory testing. The samples tested positive for dengue by reverse transcription polymerase chain reaction. The patient remained hospitalized for two days and, at discharge, was in good health conditions. The patient has no history of travel outside of Uruguay.

Zika virus infection – Netherlands - Bonaire and Aruba

Between 15 and 16 February 2016, WHO was notified of the first autochthonous cases of Zika virus infection on the islands of Bonaire and Aruba. These islands are part of the Kingdom of the Netherlands and are situated in the southern part of the Caribbean region, just north of the Venezuelan coast. Aruba is an autonomous, self-governing constituent country of the Kingdom of the Netherlands, while Bonaire is a special municipality of the Netherlands. On 15 February, the National IHR Focal Point (IHR NFP) for the Netherlands reported one case of Zika virus infection in Bonaire.

Lassa Fever – Benin

On 25 January 2016, the National IHR Focal Point of Benin notified WHO of an outbreak of Lassa fever. The outbreak was initially detected on 21 January following reports of unexplained fever within a cluster of health workers from the district of Tchaourou, Borgou department. On 3 January, these health workers provided care to a patient suffering from haemorrhagic fever.


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