BIRD FLU

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Across
  1. 4. Worldwide outbreak of a disease
  2. 5. To kill a large number of animals to prevent the spread of disease
  3. 6. A foreign substance that can trigger an immune response and cause the body to produce antibodies. The substance may be whole disease-causing organisms (dead or weakened) or parts of these organisms
  4. 7. A disease that is easily spread from one person to another
  5. 10. Drugs that are used to prevent or cure a disease caused by a virus, by interfering with the ability of the virus to multiply in number or spread from cell to cell
  6. 12. A disease that can be transmitted from animals to humans
Down
  1. 1. Outbreak of a disease that affects a large number of individuals within a population or region at the same time
  2. 2. produced by the body's immune system to fight bacteria, viruses and other antigens
  3. 3. Highly lethal; causing severe illness or death
  4. 7. A person who is infected with an agent that causes a disease but shows no sign of illness
  5. 8. A genetic change (DNA or RNA) that produces new traits which can be inherited
  6. 9. A preparation (of a dead or weakened organism or parts of it) that when administered to the body induces immunity and thereby protects the body against subsequent infection by that organism
  7. 11. An organism on or in which a parasite lives