Microbiology Flashcards
Microorganisms?
Microorganisms?
.Are too small to be seen with the naked eye and include bacteria, viruses, fungi, algae and protozoa.
.Most are non pathogenic and are essential for life e.g. in the breakdown and decay of dead matter.
Pathogenic organism?
Pathogenic organism?
.Before the symptoms of a disease develops, a pathogenic organism must invade the host, establish itself in the tissues and overcome the host’s defence mechanism.
Pathogen?
Pathogen?
.Organisms that cause disease.
Infection?
Infection?
.Is the invasion and multiplication of microorganisms in the body tissues and may lead to cellular damage.
Canine bacterial diseases?
Canine bacterial diseases?
.Salmonella .Kennel cough
.Leptospirosis .Pyoderma
.Tetanus
Penicillin?
Penicillin?
.Disrupts the synthesis of new bacteria cell walls during binary fission and burst or lyses the pathogen.
Spores?
Spores?
.Can survive extreme heat, pH, desiccation, ultraviolet radiation and exposure to toxic chemicals.
Septicaemia?
Septicaemia?
.The presence of multiplying pathogens such as bacteria and their toxins in the blood leading to systemic disease.
Epidemic?
Epidemic?
.An animal disease
Endemic?
Endemic?
.Animal disease
Pandemic?
Pandemic?
.An epidemic which occurs all over the world.
Anthroponosis?
Anthroponosis?
.A disease which can be passed from human to animal.
Commensals?
Commensals?
.Live on or in the animal and do not normally cause disease.
Obligate pathogens?
Obligate pathogens?
.Will always cause disease.
Facultative pathogens?
Facultative pathogens?
.Become pathogenic within the immunosuppressed animals.
Saprophytic bacteria?
Saprophytic bacteria?
.Will only replicate on dead tissue.
Symbionts or mutualistic bacteria?
Symbionts or mutualistic bacteria?
.Organisms that both provide a benefit to the host and derive a benefit for themselves.