Bird Flu Outbreak Kills Dozens of Tigers and Other Big Cats at Vietnam Zoos GizmodoBird flu outbreak kills dozens of tigers in Vietnam zoos The GuardianBird flu kills 47 tigers, 3 lions and a panther in Vietnam zoos, state media reports Fox NewsDeadly bird flu strain H5N1 kills dozens of captive tigers in Vietnam zoos ABC NewsBird flu suspected of killing dozens of captive tigers in Vietnam Al Jazeera English