World sees little flu activity, but influenza B nudges ahead of influenza A
Despite extra efforts to test for flu against the backdrop of COVID-19, global levels remain well below expected levels for this time of year, the World Health Organization (WHO) said in its latest update, which roughly covers the first half of December.
Compared with its last report, a greater proportion of the few respiratory samples that tested positive were influenza B: 62.8%, versus 50% in the previous update. Of the subtyped influenza A samples, most were H3N2, a trend seen in the WHO's earlier report.
In the Northern Hemisphere, sporadic flu cases were detected in some countries.
Some flu activity is occurring in West Africa, including in Burkina Faso, Ghana, Guinea, and Togo. In tropical Asia, India reported sporadic influenza A cases, and Laos and Vietnam reported some flu circulation, mainly from H3N2.
Jan 4 WHO global flu update
Senegal reports first H5N1 outbreaks as avian flu hits India, Europe
In the latest avian flu outbreak developments, Senegal reported its first appearance of highly pathogenic H5N1 in poultry, India is probing several outbreaks involving an unspecified strain in poultry and other birds, and European countries reported more H5N8 in poultry, according to government statements and notifications from the World Organization for Animal Health (OIE).
In Senegal, veterinary officials said H5N1 was involved in an outbreak that began Dec 23 at a layer farm in Thies region in the far west, when the farm manager noted a drop in water consumption, illness signs, and high fatality levels. The virus killed 58,000 of 100,000 susceptible birds, and the rest were culled to contain the spread of the virus.
Meanwhile, India's agriculture ministry said four states are reporting avian flu detections, but it didn't say which strain. Rajasthan and Madhya Pradesh reported outbreaks in crows from three cities in each state, Himachal Pradesh reported an outbreak in migratory birds, and Kerala reported four outbreaks in poultry and ducks at two locations.
Elsewhere, a handful European countries reported more H5N8 outbreaks in poultry. France reported 22 more H5N8 outbreaks, all involving duck farms in Landes department in the southwest. The events began from Dec 24 to Dec 31, killing 274 of 126,104 birds.
The Netherlands reported one more outbreak, this time at a poultry farm in North Brabant province. It began on Jan 4 and led to the deaths of 100 of 18,539 birds.
Finally, Poland reported two more outbreaks in Lubelskie province involving a duck farm and turkey farm. The outbreaks began from Dec 28 to Jan 4, and, taken together, the virus killed 31,129 of 39,930 birds. In a separate report, Poland reported an outbreak on a noncommercial poultry farm in Dolnoslaskie province that started on Dec 28 and killed 51 of 195 birds.
Jan 7 OIE report on H5N1 in Senegal
Jan 6 Indian government statement on avian flu outbreaks
Jan 7 OIE report on H5N8 in France
Jan 7 OIE report on H5N8 in the Netherlands
Jan 7 OIE report on two Polish H5N8 outbreaks
Jan 7 OIE report on one Polish H5N8 outbreak