Juthatip Keawcharoen

Avian influenza H5N1 in tigers and leopards.

Influenza virus is not known to affect wild felids. We demonstrate that avian influenza A (H5N1) virus caused severe pneumonia in tigers and leopards that fed on infected poultry carcasses. This finding extends the host range of influenza virus and has implications for influenza virus epidemiology and wildlife conservation.

Wild Ducks as Long-Distance Vectors of Highly Pathogenic Avian Influenza Virus (H5N1)

Some duck species are potential long-distance vectors; others are more likely to function as sentinels.

Wild Birds and Increased Transmission of Highly Pathogenic Avian Influenza (H5N1) among Poultry, Thailand

Wild birds are associated with increased virus spread to poultry.

Hepatitis E virus genotype 3f sequences from pigs in Thailand, 2011-2012.

Phylogenetic analysis of partial ORF1 and ORF2 genes of Hepatitis E virus (HEV) strains from pigs in Thailand during 2011–2012 was performed. The result indicated that the current Thai strains belonged to the genotype 3 subgroup 3f, which were similar to the previous HEVs circulating in humans in Thailand.

Virology of avian influenza in relation to wild birds

The outbreak of HPAI H5N1 influenza virus in Asia, which spread to Russia, the Middle East, Europe, and Africa, has put increased focus on the role of wild birds in the persistence of influenza viruses. The ecology, epidemiology, genetics, and evolution of influenza viruses cannot be fully understood without taking into account the ecology of their hosts. Here, we review current knowledge on global patterns of low pathogenic influenza virus infections in wild birds, discuss these patterns in the context of host ecology and behavior, and identify gaps in the current knowledge. Potentially important differences between low pathogenic influenza viruses and highly pathogenic H5N1 viruses in wild birds are discussed, in particular with respect to pathogenesis, virus secretion, and host range.