A pathogen is a disease-causing microorganism.
Problems with Bacteria
The problem with bacteria is that they produce toxins.
Problems with Viruses
The problem with viruses is that they damage the hose cell when they reproduce.
Function of White blood cells
a white blood cell ingests and destroys pathogens
a function of an antibody is to lock on to antigens.
passive immunity involves receiving antibodies.
antibiotics can stop bacteria from reproducing.
it is important to use antibiotics carefully because it reduces the spread of resistant strains.
a vaccination is an inactive form of the pathogen injected to stimulate immunity.