IMMUNOLOGY

Detailed explanation-1: -Immunity to a disease is achieved through the presence of antibodies to that disease in a person’s system. Antibodies are proteins produced by the body to neutralize or destroy toxins or disease-carrying organisms. Antibodies are disease-specific.

Detailed explanation-2: -Immunity is the ability of the body to defend itself against specific invading agents such as bacteria, toxins, viruses and foreign tissues. Substances that are recognised as foreign and provoke an immune response are called antigens.

Detailed explanation-3: -Specific Immunity Examples Vaccines use specific immunity to create resistance to certain pathogens. A specific immunity example is the DTaP vaccine. It vaccinates against Diphtheria, Tetanus, and Pertussis, and contains inactivated forms of toxins, produced by the pathogens that cause these diseases.

Detailed explanation-4: -Active immunity occurs when our own immune system is responsible for protecting us from a pathogen. Passive immunity occurs when we are protected from a pathogen by immunity gained from someone else. 22-Apr-2019