Poultry deaths in West Bengal have registered a decline, the Centre claimed on Tuesday indicating that bird flu virus was being contained as it sought information from neighbouring Bangladesh to help find out the source of the current outbreak.
"Lesser number of birds are dying due to the disease," Health Minister Anbumani Ramadoss told reporters in New Delhi after reviewing the bird flu situation.
"We are confident that we would be able to contain the disease," he said.
Culling operations were hit in bird flu-affected Coochbehar in West Bengal with workers demanding higher remuneration.
There was no further spread of the virus in the state where 13 of the 19 districts have fallen prey to the disease.
The Union Health Ministry has written a letter to the Ministry of External Affairs asking it to also seek details of the gene sequencing of the bird flu virus in Bangladesh.
This would help in finding out the source of the current infection and also deal with any future outbreaks, the minister said.
"Once we cull the birds and do away with them and if again the infection comes we need to know where it has come from," he said.
Health Secretary Naresh Dayal said that the virus affecting the poultry in West Bengal was closer to the Maharashtra strain rather than the one found in the recent outbreak in Manipur.
"We would like to track where it (the virus) has come from. It could be from migratory birds also," he added.