Commonground
Senior Moderator
FAO says H5N1 situation in birds has improved [increased]
11/08/08
[snip]
Increased pathogenicity in Vietnam
In other developments, the pathogenicity of H5N1 strains circulating in Vietnam seems to be rising, according to another article in the FAO's AIDEnews.
Investigators from the US Department of Agriculture and colleagues from Vietnam's National Centre for Veterinary Diagnosis said the increase in pathogenicity is manifested by more severe respiratory tract infections in ducks and an increase in cloacal virus levels, according to the article.
The higher pathogenicity has been seen in H5N1 viruses circulating in the Red River Basin (clades 2.3.2 and 2.3.4) and the Mekong delta (clade 1), the report says.
Jan Slingenbergh of the FAO's Animal Health Service said that despite the increased pathogenicity, avian flu in Vietnam is generally "fairly well in check," according to the report. Slingenbergh participated in an avian flu conference in mid June in Hanoi.
He reported that avian flu in southern Vietnam is well in check, but that efforts in northern Vietnam need "strengthening with measures other than vaccination, and the cost of vaccination cannot continue to be entirely supported by public funds only," the article states.
CIDRAP
hat-tip Helblindi
11/08/08
[snip]
Increased pathogenicity in Vietnam
In other developments, the pathogenicity of H5N1 strains circulating in Vietnam seems to be rising, according to another article in the FAO's AIDEnews.
Investigators from the US Department of Agriculture and colleagues from Vietnam's National Centre for Veterinary Diagnosis said the increase in pathogenicity is manifested by more severe respiratory tract infections in ducks and an increase in cloacal virus levels, according to the article.
The higher pathogenicity has been seen in H5N1 viruses circulating in the Red River Basin (clades 2.3.2 and 2.3.4) and the Mekong delta (clade 1), the report says.
Jan Slingenbergh of the FAO's Animal Health Service said that despite the increased pathogenicity, avian flu in Vietnam is generally "fairly well in check," according to the report. Slingenbergh participated in an avian flu conference in mid June in Hanoi.
He reported that avian flu in southern Vietnam is well in check, but that efforts in northern Vietnam need "strengthening with measures other than vaccination, and the cost of vaccination cannot continue to be entirely supported by public funds only," the article states.
CIDRAP
hat-tip Helblindi