Active Immunity - when the body makes its own antibodies in response to an antigen. These antibodies stay in the blood and fight off the disease if the same antigens would come back again. A person needs to build up a separate set of antibodies for each type of virus. Passive Immunity - when antibodies that have been produced in another animal or human are introduced into the body. Passive Immunity does not las as long as active immunity.
Newborn babies have passive immunity by getting antibodies from their mothers.
Tetanus - antitoxin is produced in horses and injected in humans. Booster shots are needed periodically to build up the passive immunity again. Disease A. Make sure vaccinations are up to date. If we do not keep vaccinations up some of the disiases that have been all but wiped out will come back. Noncommunicable diseases - cannot be spread from one person to another.