Infectious Diseases 1
A disease causing micro-organism.
What is a pathogen?
A pathological condition of body parts or tissues characterized by an identifiable group of signs and symptoms.
What is disease?
A disease caused by an infectious agent such as a bacterium, virus, protozoan, or fungus that can be passed on to others.
What is an infectious disease?
When an infectious agent enters the body and begins to reproduce; may or may not lead to disease.
What is infection?
What is the theory of spontaneous generation?
A pathogen that is eukaryotic and has a cell wall.
What is a fungi?
An organism that is infected.
What is a host?
The rate of new cases of infection per period of time.
What is incidence?
A type of pathogen that is macroscopic, multicellular and eukaryotic.
What is a macroparasite?
A disease caused by the Plasmodium protozoans that are transferred by Anopheles mosquitos.
What is malaria?
These include direct contact, indirect contact, vehicle transmission and vector transmission.
What are modes of transmission of infectious diseases?
What are Koch's postulates?
The rate of death from a particular disease.
What is the mortality rate?
A macroscopic organism like a tapeworm that lives inside the body and causes disease.
What is an endoparasite?
A situation of a disease that develops more slowly and is usually less severe, but may persist for a long, indefinite period of time.
An organism that carries a pathogen and transfers it to another organism, causing it to become diseased e.g. flea carrying Yersinia pestis bacteria which causes bubonic plague.
What is a vector?
A scientist who developed the germ theory of disease through experiments with swan-necked flasks.
Who is Louis Pasteur?
A scientist who identified the bacteria that caused anthrax using a set of steps involving culturing the pathogen on agar plates and infecting a healthy sheep.
Who is Robert Koch?
A scientist who experimented with meat in containers with different covers to show that life does not spontaneously generate.
Who is Francesco Redi?
An acute contagious respiratory disease caused by the influenza virus.
What is influenza?
Droplets from coughing or sneezing that can transmit pathogens between hosts.
What are aerosol droplets?
The time between infection and the appearance of signs and symptoms.
What is an incubation period?
A pathogenic agent that is acellular and does not have any nucleic acids.
What is a prion?
An object that has pathogens on it.
What is a fomite?
Pharmaceutical drugs that are used to kill bacteria.
What are antibiotics?