Pathogenic Organisms

24 terms by ScruggsBCHS

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pathogen

a microorganism that causes a disease

Microorganism

living organism that is so small it can be seen only w/ the aid of a microscope

bacteria

one-celled microscopic organisms; there are several different types; not all are bad for you

bacilli

rod-shaped, spore-forming bacteria; can cause Tetanus & TB

rickettsia

small bacterium that lives in lice, fleas, ticks and mites; cause: Rocky Mountain Spotted Fever

spirochetes

sprial-shaped bacteria that have flexible walls and can move; causes Lyme Disease

staphylococci

bacteria that form irregular groups or clusters; may cause bacterial pneumonia

streptococci

bacteria that form a singular chain; can cause pharyngitis, aka Strep Throat

fungus

simple parasitic plant; some are harmless; can cause aspergillosis (affects any organ)

yeast

a type of fungus; ex is candida albicans that affects the skin or mucous membranes (common place is mouth and vagina)

parasite

plan or animal that lives on or within another living organism at the expense of that organism; example: malaria

viruses

very small infectious agents that live by invading healthy cells, reproducing and breaking through the cell wall to spread to other cells

varicella

chickenpox; highly contagious viral disease that causes fever and pustules, transmitted by droplets or direct contact w/ the sores

Cytomegalovirus

infection that may not have s/s unless you are pregnant or immunocompromised; can cause blindness, mental disability, etc in newborns

Herpes Zoster

aka shingles; acute viral infection characterized by painful skin eruptions that follow the underlying route of the inflamed nerve; originates w/ the person having chicken pox & reactivated when the immune system is compromised

Infectious Mononucleosis

caused by Epstein-Barr Virus, characterized by fever, sore throat, enlarged lymph nodes; can last for weeks

Measles

acute, highly contagious viral disease transmitted by respiratory droplets; characterized by Koplik's spots, followed by a spreading skin rash

Mumps

viral disease characterized by the swelling of parotid glands

rabies

viral infection that may be transmitted to humans by the blood, tissue, salivary glands of an infected animal

Rubella

aka German Measles; viral infection characterized by fever, diffuse, fine, red rash. If mother has it it may cause congenital abnormalities

antibiotic

chemical substance that stops the growth or kills pathogenic microorganisms

bactericide

substance that causes death of bacteria; primarily penicillins & cephalosporins

bacteriostatic

agent that inhibits, slows, or retard the growth of bacteria; includes tetracyclines, sulfonamides & erythromycin

antiviral drugs

treat viral infections or to provide temporary immunity; acyclovir is an example; antibiotics are not effective against viruses.

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