microbes have a coating of proteins which are not found in your body and they are called.....
antigen
Is measles caused by a virus or bacteria?
virus
Which cells in your body recognize the antigens?
White blood cells!
The defense chemicals created by the white blood cells are called....
antibodies
Toxins are produced by some pathogens. Toxins are ....
poison
Antibodies and antitoxins help you fight the disease... they give you (I..............)
immunity
Antibiotics kill........ but not human cells.
Bacteria
If you have a disease like smallpox or chickenpox you can become ............ to it.
immune
You need ..... of Sabin vaccine to be immune to polio.
2 dosis
One kind of vaccine is an injection of a small dose of a .... (e.g. the vaccine against polio)
weakened living pathogen
Some vaccines are injections that give you the ....... directly. ( e.g.: anti-tetanus)
antibodies
