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Avian influenza is an infectious disease of birds caused by the influenza A virus

Avian influenza is an infectious disease of birds caused by the influenza A virus

Avian influenza is an infectious disease of birds caused by the influenza A virus

Avian influenza is an infectious disease of birds caused by the influenza A virus

Avian influenza is an infectious disease of birds caused by the influenza A virus

Brucellosis is a rare disease spread to humans from infected farm animals

Clostridium botulinum spores are common in the environment

Clostridium botulinum spores are common in the environment

Brucellosis is a rare disease spread to humans from infected farm animals

Clostridium botulinum spores are common in the environment