Diseases Hypersensitivity Bacterial Viral Fungal

Hypersensitivity Reactions If the activity of the immune system is excessive or over reactive, a hypersensitivity reaction develops Immediate hypersensitivity. The reactions accompanying immediate hypersensitivity depend upon the nature of the antigen, the frequency and route of antigen contact, and the type of antibody reacting with the antigen. The initial dose of antigen is referred to as the sensitizing dose. This exposure is followed by a latent period and then a later dose of the same antigen, called the eliciting dose or shocking dose. The shocking dose sets off the hypersensitivity reaction, resulting in tissue damage.

Terms Used in Hypersensitivity Allergy Anaphylactic shock Erythroblastosis fetalis Systemic lupus erythematosus Rheumatoid arthritis, Glomerulonephritis Autoimmune Diseases Contact dermatitis

Immunodeficiency Diseases Disorders of the immune system may also be due to deficiencies of the system. These deficiencies may be congenital or iatrogenic (induced by immunosuppressive drugs), or they may result from malignancies occurring in the lymphatic system.

Bacterial Skin Diseases Staphylococcal infections Scarlet fever Erysipelas Impetigo contagiosum Gas gangrene Cat scratch fever

Viral Skin Diseases Rubella Measles-rubeola Chickenpox- Shingles Warts

Fungal and Parasitic Skin Diseases Athlete's foot and ringworm Candidiasis (yeast disease) Swimmer's itch

Bacterial Diseases of the Nervous System Meningococcal meningitis Leprosy Tetanus Botulism

Viral Diseases of the Nervous System Rabies Encephalitis Poliomyelitis

Bacterial Diseases of the Cardiovascular and Lymphatic Systems Septicemia Rheumatic fever Plague Undulant fever Anthrax Lyme disease Epidemic typhus

Viral Diseases of the Cardiovascular and Lymphatic Systems Yellow fever Dengue fever Infectious mononucleosis Acquired immune deficiency syndrome (AIDS)

Protozoal and Parasitic Diseases Toxoplasmosis Malaria

Bacterial Diseases of the Respiratory System Strep throat - Scarlet Fever Diphtheria Otitis media Pertussis Tuberculosis Pneumococcal pneumonia Legionnaires' disease

Viral Diseases of the Respiratory System Common cold Influenza RS virus disease

Fungal and Protozoal Diseases of the Respiratory System Histoplasmosis Aspergillosis Pneumocystispneumonia (associated with AIDS)

Bacterial Diseases of the Digestive System Dental caries - Periodontal disease Shigellosis Salmonellosis (think chicken) Typhoid fever Cholera E. coli0157:H7 (think hamburger) Clostridial food poisoning

Viral Diseases of the Digestive System Mumps Hepatitis A Hepatitis B …. Viral gastroenteritis – rotavirus

Protozoal Diseases of the Digestive System Amoebic dysentery Giardiasis –Think: Hikers, backpackers, and campers Cryptosporidiosis (think AIDS)

Parasitic Diseases of the Digestive System Pinworm disease Roundworm disease Hookworm disease Tapeworm disease Trichinosis (think pork)

splinter hemorrhages under the finger nails.

Bacterial Diseases of the Reproductive System Gonorrhea Chlamydia Syphilis Vaginitis

Viral Diseases of the Reproductive System Genital herpes Genital warts

Fungal and Protozoal Diseases of the Reproductive System Candidiasis Trichomoniasis