Thu Apr 24, 5:16 AM ET Health workers collect chicken for culling at a poultry farm in Bijoy village, about 45 km (28 miles) west of the northeastern Indian city of Agartala April 24, 2008. Authorities battling a deadly outbreak of bird flu in poultry in India's remote northeast blamed Bangladesh for the spread on Thursday, but many experts said the state was not doing enough to contain the virus. More than 25,000 chickens and ducks have already been slaughtered in Tripura state this month after it was hit by the deadly H5N1 strain. REUTERS/Stringer (INDIA) (BIRD FLU Rapid)	Thu Apr 24, 5:16 AM ET A health worker culls geese at a poultry farm in Bijoy village, about 45 km (28 miles) west of the northeastern Indian city of Agartala April 24, 2008. Authorities battling a deadly outbreak of bird flu in poultry in India's remote northeast blamed Bangladesh for the spread on Thursday, but many experts said the state was not doing enough to contain the virus. More than 25,000 chickens and ducks have already been slaughtered in Tripura state this month after it was hit by the deadly H5N1 strain. REUTERS/Stringer (INDIA) (BIRD FLU Rapid)
Thu Apr 24, 5:16 AM ET A health worker culls a rooster at a poultry farm in Bijoy village, about 45 km (28 miles) west of the northeastern Indian city of Agartala April 24, 2008. Authorities battling a deadly outbreak of bird flu in poultry in India's remote northeast blamed Bangladesh for the spread on Thursday, but many experts said the state was not doing enough to contain the virus. More than 25,000 chickens and ducks have already been slaughtered in Tripura state this month after it was hit by the deadly H5N1 strain. REUTERS/Stringer (INDIA) (BIRD FLU Rapid)	Thu Apr 24, 5:16 AM ET A health worker collects poultry for culling at a farm in Bijoy village, about 45 km (28 miles) west of the northeastern Indian city of Agartala April 24, 2008. Authorities battling a deadly outbreak of bird flu in poultry in India's remote northeast blamed Bangladesh for the spread on Thursday, but many experts said the state was not doing enough to contain the virus. More than 25,000 chickens and ducks have already been slaughtered in Tripura state this month after it was hit by the deadly H5N1 strain. REUTERS/Stringer (INDIA) (BIRD FLU Rapid)
Thu Apr 24, 5:16 AM ET A health worker culls a chicken at a poultry farm in Bijoy village, about 45 km (28 miles) west of the northeastern Indian city of Agartala April 24, 2008. Authorities battling a deadly outbreak of bird flu in poultry in India's remote northeast blamed Bangladesh for the spread on Thursday, but many experts said the state was not doing enough to contain the virus. More than 25,000 chickens and ducks have already been slaughtered in Tripura state this month after it was hit by the deadly H5N1 strain. REUTERS/Stringer (INDIA) (BIRD FLU Rapid)	Fri Apr 25, 11:22 AM ET A health worker culls a chicken outside a poultry farm in Kalakacchya village, about 50 km (32 miles) north of Agartala, capital of India's northeastern state of Tripura April 25, 2008. Authorities battling an outbreak of bird flu in poultry in Tripura blamed Bangladesh for the spread on Thursday, but many experts said India was not doing enough to contain the virus. REUTERS/Stringer (INDIA) (BIRD FLU Rapid)
Fri Apr 25, 11:22 AM ET Health workers burn poultry pens after culling chickens in Kalakacchya village, about 50 km (32 miles) north of Agartala, capital of India's northeastern state of Tripura April 25, 2008. Authorities battling an outbreak of bird flu in poultry in Tripura blamed Bangladesh for the spread on Thursday, but many experts said India was not doing enough to contain the virus. REUTERS/Stringer (INDIA) (BIRD FLU Rapid)	Fri Apr 25, 11:22 AM ET A villager brings poultry to health workers for culling in Kalakacchya village, about 50 km (32 miles) north of Agartala, capital of India's northeastern state of Tripura April 25, 2008. Authorities battling an outbreak of bird flu in poultry in Tripura blamed Bangladesh for the spread on Thursday, but many experts said India was not doing enough to contain the virus. REUTERS/Stringer (INDIA) (BIRD FLU Rapid)
Fri Apr 25, 11:22 AM ET Health workers destroy eggs at a poultry farm in Kalakacchya village, about 50 km (32 miles) north of Agartala, capital of India's northeastern state of Tripura April 25, 2008. Authorities battling an outbreak of bird flu in poultry in Tripura blamed Bangladesh for the spread on Thursday, but many experts said India was not doing enough to contain the virus. REUTERS/Stringer (INDIA) (BIRD FLU Rapid)	Sat Apr 26, 6:06 AM ET A health worker culls a chicken at a poultry farm in Barkathal village, about 60 km (37 miles) north of the northeastern Indian city of Agartala, April 26, 2008. Authorities battling an outbreak of bird flu in poultry in Tripura blamed Bangladesh for the spread earlier this week, but many experts said India was not doing enough to contain the virus. More than 25,000 chickens and ducks have already been slaughtered in Tripura this month after it was hit by the H5N1 strain. REUTERS/Stringer (INDIA) (BIRD FLU Rapid)
Sat Apr 26, 6:06 AM ET A health worker culls a goose in Barkathal village, about 60 km (37 miles) north of the northeastern Indian city of Agartala, April 26, 2008. Authorities battling an outbreak of bird flu in poultry in Tripura blamed Bangladesh for the spread earlier this week, but many experts said India was not doing enough to contain the virus. More than 25,000 chickens and ducks have already been slaughtered in Tripura this month after it was hit by the H5N1 strain. REUTERS/Stringer (INDIA) (BIRD FLU Rapid)	Sat Apr 26, 6:06 AM ET A health worker culls poultry at a farm in Barkathal village, about 60 km (37 miles) north of the northeastern Indian city of Agartala, April 26, 2008. Authorities battling an outbreak of bird flu in poultry in Tripura blamed Bangladesh for the spread earlier this week, but many experts said India was not doing enough to contain the virus. More than 25,000 chickens and ducks have already been slaughtered in Tripura this month after it was hit by the H5N1 strain. REUTERS/Stringer (INDIA) (BIRD FLU Rapid)
Sat Apr 26, 6:46 AM ET Health workers collect poultry for culling at a farm in Barkathal village, about 60 km (37 miles) north of the northeastern Indian city of Agartala, April 26, 2008. Authorities battling an outbreak of bird flu in poultry in Tripura blamed Bangladesh for the spread earlier this week, but many experts said India was not doing enough to contain the virus. More than 25,000 chickens and ducks have already been slaughtered in Tripura this month after it was hit by the H5N1 strain. REUTERS/Stringer (INDIA) (BIRD FLU Rapid)	Sat Apr 26, 6:46 AM ET Health workers collect poultry for culling at a farm in Barkathal village, about 60 km (37 miles) north of the northeastern Indian city of Agartala, April 26, 2008. Authorities battling an outbreak of bird flu in poultry in Tripura blamed Bangladesh for the spread earlier this week, but many experts said India was not doing enough to contain the virus. More than 25,000 chickens and ducks have already been slaughtered in Tripura this month after it was hit by the H5N1 strain. REUTERS/Stringer (INDIA) (BIRD FLU Rapid)
Sat Apr 26, 6:46 AM ET A health worker collects poultry for culling at a farm in Barkathal village, about 60 km (37 miles) north of the northeastern Indian city of Agartala, April 26, 2008. Authorities battling an outbreak of bird flu in poultry in Tripura blamed Bangladesh for the spread earlier this week, but many experts said India was not doing enough to contain the virus. More than 25,000 chickens and ducks have already been slaughtered in Tripura this month after it was hit by the H5N1 strain. REUTERS/Stringer (INDIA) (BIRD FLU Rapid)	Sat Apr 26, 6:46 AM ET A woman waits with her poultry, which will be culled, outside a culling camp in Barkathal village, about 60 km (37 miles) north of the northeastern Indian city of Agartala, April 26, 2008. Authorities battling an outbreak of bird flu in poultry in Tripura blamed Bangladesh for the spread earlier this week, but many experts said India was not doing enough to contain the virus. More than 25,000 chickens and ducks have already been slaughtered in Tripura this month after it was hit by the H5N1 strain. REUTERS/Stringer (INDIA) (BIRD FLU Rapid)