An association between two or more species
What is symbiosis?
Branch of the U.S. Public Health Service responsible for the control and prevention of infectious diseases
What is the Centers for Disease Control or CDC?
I don't feel ill
What is a healthy carrier?
Unknown cause
What is idiopathic?
Coughs, sneezes, speaking in close quarters
What is droplet transmission?
The presence of microorganisms, usually where they are not wanted
What is contamination?
The study of causes and origins of disease
What is Etiology?
Food, milk, water, soil, air
What is a non-living reservoir?
Caused by medical procedure
What is iatrogenic?
Clothing, dishes, utensils, toys, bedding
What is indirect transmission?
The degree or intensity of the disease produced by a pathogen
What is virulence?
The number of persons contracting a specific disease in relation to the total population
What is morbidity rate?
Transmission of disease from other species to humans
What is an animal reservoir?
Excessive or deficiencies in hormone production
What is endocrine?
Transmission across the placenta
What is vertical transmission?
The capacity or ability of a microorganism to cause a disease
The number of deaths from a specific disease in relation to the total population
What is mortality rate?
Periodically releases organisms
What is an intermittent carrier?
Lowers resistence to infectious diseases and contributes to severity
What is nutritional deficiency?
Infectious organism must complete part of its life cylce in the vector
What are biological vectors?
A disturbance in the state of health that prevents the body from performing any or all of it's normal functions
What is disease?
The number of new cases of a disease seen in a specific period of time
What is incidence?
Carries the pathogen for a long time after recovery of disease
What is a chronic carrier?
Abnormal cell growth that leads to tumors and harmless or cancerous growth
What is neoplastic?
Mainly from soil, plant, animals
What is airborne transmission?