21.   Then they infected the animals, in one experiment, with coxsackie viruses and, in a second experiment, with influenza viruses.

22.   They then infected other animals with the new version and found that the disease had mutated.

23.   Those animals will infect animals here within three years, said Tom French, assistant director of the state Department of Fisheries and Wildlife.

24.   A department official, however, said specimens taken from monkeys at Ferlite showed the animals were infected with the Ebola strain.

25.   And the only way to determine for certain that an animal is infected is to kill it and examine its brain.

26.   Both an initial examination and a more reliable follow-up test showed that the animal was infected, said ministry spokesman Masatoshi Komatsubara.

27.   Fakhoury did not say what disease infected the animals.

28.   Experts say it is extremely difficult to contain an outbreak of foot and mouth, a highly contagious virus that infects cloven-hoofed animals like sheep, cows and pigs.

29.   Foot-and-mouth disease infects cloven-hoofed animals.

30.   Foot-and-mouth infects cloven-hoofed animals.