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Types of infectious agents Agent Description Microorganisms: Microorganisms, or microbes are extremely diverse microscopic organisms, including archaea and bacteria, which are commonly grown and studied in laboratories and can infect laboratory animals and laboratory workers. Viruses
One use of the concept of biocontainment is related to laboratory biosafety and pertains to microbiology laboratories in which the physical containment of pathogenic organisms or agents (bacteria, viruses, and toxins) is required, usually by isolation in environmentally and biologically secure cabinets or rooms, to prevent accidental infection ...
"laboratory personnel have specific training in handling pathogenic agents and are directed by competent scientists." [24] [25] Access to the laboratory is limited when work is being conducted. Certain procedures in which infectious aerosols or splashes may be created are conducted in biological safety cabinets or other physical containment ...
In biology, a pathogen (Greek: πάθος, pathos "suffering", "passion" and -γενής, -genēs "producer of"), in the oldest and broadest sense, is any organism or agent that can produce disease. A pathogen may also be referred to as an infectious agent, or simply a germ. [1] The term pathogen came into use in the 1880s.
The following outline is provided as an overview of and topical guide to concepts related to infectious diseases in humans.. Infection – transmission, entry/invasion after evading/overcoming defense, establishment, and replication of disease-causing microscopic organisms (pathogens) inside a host organism, and the reaction of host tissues to them and to the toxins they produce.
Biorisk generally refers to the risk associated with biological materials and/or infectious agents, also known as pathogens. [1] The term has been used frequently for various purposes since the early 1990s. [2] [3] The term is used by regulators, security experts, laboratory personnel and industry alike, and is used by the World Health ...
An infectious disease agent can be transmitted in two ways: as horizontal disease agent transmission from one individual to another in the same generation (peers in the same age group) [3] by either direct contact (licking, touching, biting), or indirect contact through air – cough or sneeze (vectors or fomites that allow the transmission of the agent causing the disease without physical ...
Microbiological culture is the primary method used for isolating infectious disease for study in the laboratory. Tissue or fluid samples are tested for the presence of a specific pathogen, which is determined by growth in a selective or differential medium. The 3 main types of media used for testing are: [34]