salmonella typhi
Học thuậtThân thiện
A scientist examines a petri dish containing Salmonella typhi under a laboratory light.
Definition
Noun: * A pathogenic bacterium: Salmonella typhi is a specific, rod-shaped bacterium of the genus Salmonella. It is the causative agent of typhoid fever in humans.
Usage
- is a scientific and medical term. It is typically used in formal contexts such as medical diagnoses, laboratory reports, scientific research, and public health communications.
- It is often italicized in writing, as is customary for genus and species names in biological nomenclature (e.g., ).
Examples
- The water sample was tested for the presence of .
- Typhoid fever is caused by infection with the bacterium .
- The spread of is often linked to contaminated food or water.
Advanced Usage
- The term is used to specify the exact etiological agent of a disease, distinguishing it from other species (like ) that cause different illnesses (like gastroenteritis).
- In medical history, figures like "Typhoid Mary" (Mary Mallon) are famous for being asymptomatic carriers of .
Variants and Related Words
- Typhoid bacillus: A common alternative name for .
- Salmonella (noun): The broader genus of bacteria to which belongs.
- Typhoid fever (noun): The systemic illness caused by infection.
- Paratyphi (in ): A related species that causes a similar but often less severe illness called paratyphoid fever.
Synonyms
- Typhoid bacillus
Notes on Meaning
This term refers exclusively to a single, specific bacterial species. It does not refer to the disease itself (which is typhoid fever), nor to the broader category of food poisoning often associated with other salmonellae.
A scientist examines a petri dish containing Salmonella typhi under a laboratory light.
Noun
- a form of salmonella that causes typhoid fever