An outbreak of foot and mouth disease in Indonesia is threatening to disrupt the country's Eid al-Adha festival.The festival happens during the Muslim holiday of Eid al-Adha.It celebrates the Prophet Abraham and his willingness to sacrifice his son.Muslims often mark the holiday by killing sheep, cattle or goats.Some of the animal meat is given to the poor.Foot and mouth disease, which sickens animals, is a big threat to agriculture and food producers.This year, the Eid al-Adha holiday falls on July 9.But, animal traders have reported lower sales this year because of the presence of foot and mouth disease.The disease can spread quickly among animals including cattle, sheep, goats and pigs.While it can be deadly for animals, foot and mouth is not generally considered a threat to human health."This year is a year of loss for us," said Jamal Lulay, a trader in West Java.