(Immunoglobulin) A glycoprotein substance developed in response to, and interacting specifically with an antigen.
(Immunogen) A foreign substance that STIMULATES the FORMATION OF ANTIBODIES that interact specifically with it.
The PREVENTION of SEPSIS by preventing or inhibiting the growth of causative microorganisms
DILUTION / WEAKENING of virulence of a microorganism, reducing or abolishing pathogenicity.
SELF NOURISHING bacteria that are capable of growing in the absense of organs compounds. Organisms that obtain carbon from Carbon Dioxide
A procaryotic one celled microorganism of the Kingdom Monera, existing as a free living organisms or as parasites, multiplying by binary fission and having a large range of biochemical properties
A visible GROUP of bacteria growing on a solid medium, presumably arising from a single microorganism
A method of asexual reproduction in bacteria in which the cell splits into two parts, each of which develops into a complete individual.
An arthropod vector in which the disease causing organism multiplies or develops WITHIN the arthropod prior to becoming infective for a susceptible individual.
The symbiotic relationship of 2 organisms of different species in which ONE GAINS SOME BENEFIT, such as protection or nourishment.
A disease that may be transmitted directly or indirectly from one individual to another.
A genus of bacteria that are gram positive organisms occuring in PAIRS. Also called Streptococcus.
A chemical or physical agent that KILLS DISEASE-CAUSING microorganisms - generally used on INANIMATE OBJECTS
The DESTRUCTION of INFECTIOUS AGENTS by chemical or physical means directly applied to an inanimate object
bacterial toxin CONFINED within the body of a bacterium. Freed only when the bacterium is broken down. Found only in gram negative bacteria
appearance of an infectious disease or condition that attacks MANY PEOPLE /SAME TIME /SAME GEOGRAPHICAL AREA
Having the ability to do something that is not compulsory, in particular having the ability to live or ADAPT to certain conditions
one in which the organisms are originally confined to one area but enter the blood or lymph vessel and SPREAD to other parts of the body.,
A group of diverse and widespread unicellular & multi cellular organisms, lacking cholorphyll, usually BEARING SPORES, and often filamentous
An organism that REQUIRES COMPLEX ORGANIC FOOD from a carbon source in order to grown and develop.
the state or condition in which the body or a part of it are INVADEd by a pathogenic agent that - favorable conditions; MULTIPLIES and produces injurious effects (REACTION).
Infection caused by germs lodging and multiplying AT 1 POINT IN A TISSUE, and remaining there (one area)
A living organism or an object that is capable of transmitting infections by CARRYING DISEASED AGENT on its EXTERNAL BODY PARTS/ SURFACE
Bacteria that prefers moderate temperature and develops best at temperaturees between 25C and 40C
a relationship in which organisms of 2 different species live in close associations to the MUTUAL BENEFIT of each other.
Bacteria of the Mycoplasma genus that are found in humans and most have no cell wall. It is the smallest free-living organisms presently known, being intermediate in size between viruses and bacteria
An organism that exists as part of the normal flora but may become pathogenic under certain circumstances
PRESSURE that develops when two solutions of different concentrations are separated by a SEMI PERMEABLE MEMBRANE
A disease affecting the majority of the population of a large region or one that is epidemic at the same time in many different parts of the world.
An interactive relationship between 2 organisms in which ONE IS HARMED and THE OTHER BENEFITS
A small proteinaceous infectious particle that is RESISTANT to most procedures that MODIFY NUCLEIC ACID
One celled organsims of the Kingdom Proista, most are unicellular, although some are colonial.
Infection CAUSED by a DIFFERENT ORGANISM than the one causing the primary infection.
A genus of gram-positive, non motile, opportunistic bacteria which tends to aggregate irregular, grape-like clusters.
Process of COMPLETELY REMOVING or DESTROYING all life forms or thEIr products on or in a substance
BLOOD DISTRIBUTION THROUGHOUT THE BODY of poisonous products of bacteria growing in a focal or local site, thus producing generalized symptoms