ABSTRACT Clade 2.3. 4.4 highly pathogenic avian influenza viruses (H5Nx) have spread
from Asia to other parts of the world. Since 2014, human infections with clade 2.3. 4.4 highly …

ABSTRACT H7N9 virus has caused five infection waves since it emerged in 2013. The
highest number of human cases was seen in wave 5; however, the underlying reasons have …

Here, we reported the complete genome sequence of a novel H6N2 avian influenza virus
(AIV) isolated from chicken in Guangdong, Southern China, in 2011 which was a natural …

The genotypes of the H9N2 avian influenza viruses have changed since 2013 when almost
all H9N2 viruses circulating in chickens in China were genotype 57 (G57) with the fittest …

ABSTRACT H5N1 avian influenza viruses bearing the clade 2.3. 4.4 b hemagglutinin gene
have been widely circulating in wild birds and are responsible for the loss of over 70 million …

The prevalence and variation of the H9N2 avian influenza virus (AIV) pose a threat to public
health. A total of eight viruses isolated from farmed poultry in South China during 2017 …

We report the first detection of Y280‐lineage H9N2 avian influenza viruses in live bird
markets in Korea during July 2020. The viruses were isolated from domestic ducks and …

Human infection with a novel influenza A (H10N8) virus was first described in China in
December 2013. However, the origin and genetic diversity of this virus is still poorly …

Circulating H7N9 influenza viruses in live poultry markets continue to pose a threat to
human health. Free-range poultry, one of the sources for these markets, are common in …

To the Editor: Avian influenza A (H5N6) influenza viruses have circulated among poultry in
southern (Jiangxi, Guangdong) and western (Sichuan) provinces of China since 2013 (1, 2) …