Security personnel investigate the site of an attack in Thailand's southern Yala province January 25, 2011. A powerful roadside bomb killed nine civilians and wounded two others in Thailand's restive deep south on Tuesday, an attack blamed on separatist insurgents, police said. The victims were all Buddhists and were travelling in a pickup truck to hunt wild pigs when the bomb exploded in Yala, one of three predominantly Muslim provinces plagued by violence since a separatist rebellion resurfaced seven years ago. REUTERS/Surapan Boonthanom (THAILAND - Tags: CIVIL UNREST) 

A worker processes turkeys at a food processing plant in La Calera, about 125 km (78 miles) south of Santiago, August 28, 2009. Chile detected the H1N1 swine flu virus in turkeys, authorities said, the first time the virus has been found outside humans and pigs, but said there was no indication the disease had spread to other parts of Chile.REUTERS/Eliseo Fernandez (CHILE HEALTH) 

Turkeys are seen at the entrance to a food processing plant in La Calera, about 125 km (78 miles) south of Santiago, August 28, 2009. Chile detected the H1N1 swine flu virus in turkeys, authorities said, the first time the virus has been found outside humans and pigs, but said there was no indication the disease had spread to other parts of Chile. REUTERS/Eliseo Fernandez (CHILE HEALTH) 

Turkeys are seen at a food processing plant in La Calera, about 125 km (78 miles) south of Santiago, August 28, 2009. Chile detected the H1N1 swine flu virus in turkeys, authorities said, the first time the virus has been found outside humans and pigs, but said there was no indication the disease had spread to other parts of Chile.REUTERS/Eliseo Fernandez (CHILE HEALTH) 

A worker processes turkeys at a food processing plant in La Calera, about 125 km (78 miles) south of Santiago, August 28, 2009. Chile detected the H1N1 swine flu virus in turkeys, authorities said, the first time the virus has been found outside humans and pigs, but said there was no indication the disease had spread to other parts of Chile.REUTERS/Eliseo Fernandez (CHILE HEALTH) 

Turkeys are seen at a food processing plant in La Calera, about 125 km (78 miles) south of Santiago, August 28, 2009. Chile detected the H1N1 swine flu virus in turkeys, authorities said, the first time the virus has been found outside humans and pigs, but said there was no indication the disease had spread to other parts of Chile.REUTERS/Eliseo Fernandez (CHILE FOOD HEALTH IMAGES OF THE DAY) 

Turkeys are seen at a food processing plant in La Calera, about 125 km (78 miles) south of Santiago, August 28, 2009. Chile detected the H1N1 swine flu virus in turkeys, authorities said, the first time the virus has been found outside humans and pigs, but said there was no indication the disease had spread to other parts of Chile.REUTERS/Eliseo Fernandez (CHILE FOOD HEALTH IMAGES OF THE DAY) 

A front loader piles up carcasses of swine infected with African swine fever after they were culled at a farm in the village of Kiyevka in the Stavropol region March 19, 2009. Veterinary workers killed some 200 animals to prevent the disease from spreading, officials said. REUTERS/Eduard Korniyenko (RUSSIA ANIMALS HEALTH DISASTER) 

A pig is vaccinated against swine fever in Boldesti-Scaeni, 72 km (45 miles) north of Bucharest December 23, 2006. Romania launched a large-scale vaccination campaign to "control and eradicate" swine fever on a request from Brussels, as the Balkan country will join the European Union on January 1, 2007 along with its neighbour Bulgaria. REUTERS/Bogdan Cristel (ROMANIA) 

A tractor unloads dead pigs into a container after they were killed on a farm where swine fever had been found in Haltern near Dortmund March 5, 2006. Authorities of the state of North Rhine-Westphalia had ordered the slaughter of 2,600 animals at local pig-rearing farms after detecting swine fever there. REUTERS/Alex Grimm