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How do you identify different Salmonella species by biochemical test?
You can differentiate between different salmonella strains using serology. Each strain has its own combination of antigens. Depending on the O, H, and vi antigens, you can determine which strain is present. The O-antigen is the somatic polysaccharide antigen, the H-antigen is the flagellar antigen and the vi-antigen is the capsular antigen. Antibodies to most of the variants of these antigens are available commercially for use in labs. Adding an aliquot of specific antisera to a suspension of your salmonella spp, and incubating it for a few hours in a water bath will result in visible agglutination if your salmonella strain possesses the specific antigen to the antibody you added. For example, Salmonella typhi will show agglutination with O [9,12], H [d] and vi.
What is S Typhi H?
S Typhi H is an antigen associated with Salmonella Typhi, the bacterium responsible for causing typhoid fever. This antigen is used to detect the presence of antibodies in a person's blood, indicating a past or current infection with Salmonella Typhi.
What does typhi h and o mean in widal test?
In a Widal test, "H" refers to the flagella antigen of Salmonella typhi while "O" refers to the somatic antigen of the bacteria. The presence of antibodies against these antigens indicates a recent or current infection with Salmonella typhi, the bacterium that causes typhoid fever.
Which ABO phenotype selection contains the most H antigen and the least H antigen respectively on the red cell surface?
The ABO phenotype that contains the most H antigen on the red cell surface is the O phenotype, as individuals with this phenotype have the highest concentration of H antigen and lack A and B antigens. Conversely, the AB phenotype contains the least H antigen because it has both A and B antigens, which are produced by the modification of H antigen, resulting in a lower amount of unmodified H antigen on the surface.
What is the default range of salmonella typhi H and salmonella typhi O?
The default range for Salmonella typhi H (flagellar antigens) and O (somatic antigens) typically refers to the dilution ranges used in serological testing to detect specific antibodies in a patient's serum. Generally, the H antigen is tested at dilutions ranging from 1:40 to 1:320, while the O antigen is tested at dilutions that can vary but often starts around 1:20. These ranges can be adjusted based on specific laboratory protocols or patient conditions. However, it's important to consult specific laboratory guidelines for precise testing parameters.
Your result of widal test is antigen O.180 antigen H.. 1160 antigen A.. no titer antigen B.. no titer What is the meaning of this results?
you might be suffering from typhoid fever as o antigen more than 100 and h antigen more than 200 are significant consult your doctor immediately for proper treatment dr.mahwash
Which type of medicine you use in typhi o and h?
In the treatment of typhoid fever, caused by Salmonella typhi, antibiotics such as ciprofloxacin, azithromycin, or ceftriaxone are commonly used for the O and H antigen strains. The choice of antibiotic may depend on local resistance patterns and the severity of the infection. Supportive care, including hydration and nutritional support, is also essential. Vaccination can help prevent typhoid fever, but it is not a treatment.
How is the flagella protein h antigen useful to those working in a medical lab?
It helps to separate blood types
What is H referred to as in H antigen?
The H is 1. the antigen in the flagella of motile (moving) bacteria; important in serologic classification of enteric (intestinal) bacteria. 2. the chemical precursor of antigens of the ABO blood group locus. Some are very rare types seen in only a few types. It is called "Oh" and also the Bombay (now the city Mumbai) Group.
What is the molecule that can be recognized by the immune system?
Antigens.
What is the latin name for salmonella?
The Latin name for Salmonella is Salmonella enterica.
Is salmonella enterica and salmonella bongori species of salmonella?
Yes.
