Across
- 3. Produced by white blood cells to bind to and neutralise toxins
- 5. When white blood cells engulf and digest a pathogen
- 7. Your body encounters the pathogen again but produces antibodies rapidly to avoid illness
- 8. Injecting a dead or weakened version of a pathogen into the body. Antibodies are produced in response
Down
- 1. An organism that does not cause disease itself but transfers pathogens from one organism to another
- 2. Produced by white blood cells. They lock onto the antigen before white blood cells destroy them.
- 4. A pathogen that lives inside your cells to replicate and burst out of the cell, releasing new viruses
- 5. A substance that appears like the drug but does not impact the body.
- 6. Found on the surface of all cells, bacteria and viruses