what are pathogens
Pathogens are microorganisms-such as bacteria and viruses-that cause disease. Bacteria release toxins, and viruses damage our cells. White blood cells can ingest and destroy pathogens.They can produce antibodies to destroy pathogens, and antitoxins to neutralise toxins.In vaccination pathogens are introduced into the body in a weakened form.acteria release toxins, and viruses damage our cells. White blood cells can ingest and destroy pathogens. They can produce antibodies to destroy pathogens, and antitoxins to neutralise toxins. In vaccination pathogens are introduced into the body in a weakened form.