PUBHLTH 1 Lecture Notes - Lecture 20: West Nile Fever, Junk Food, Chives
Document Summary
Bacteria (single-living organism) tuberculosis (rod shape), cholera (vibrio cholera, rod shape), typhoid, tetanus, diphtheria, dysentery, syphilis, streptococci, staphylococci (round-shape bacteria, cocci) Viruses (not complete cells, complex of nucleic acid and protein, can survive extreme conditions, reproduce themselves by taking control of the cell"s machinery, killing the cell) smallpox, poliomyelitis, hepatitis, measles, rabies, aids, yellow fever. Parasites (protozoa, single-celled animals) malaria, cryptosporidiosis, giardiasis, roundworms, tapeworms, hookworms, pinworms. Touching contaminated object and putting hands to mouth, nose, or eyes. Contaminated water or food: fecal-oral route (cholera, diphteria, hepatitis a) Reservoir (pathogen can live, rodents, flea - plague, racoon, bats rabbies) Means of transmission (a person eats food, sexual contact, tick-bite) Interrupt chain of infection at any link (1-4) Prevent transmission wash hands quarantine condom. Caloric intake obesity= associated with decreased immune system, evidenced by decreased bactericidal activity of leucocytes. Lipids: increased cholesterol, ffa, tg and bile acids inhibit: lymphoproliferation, response to mitogen, antibody response, pmn chemotaxis, phagocytosis immune system.
