Yersinia Antibodies
Private Yersinia Antibodies testing in London for £157.99, measuring one infection-related antibody marker with results expected in around 6 days.
Turnaround time
6 business days
Biomarkers count
1
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Overview of the Yersinia Antibodies Test
The Yersinia Antibodies blood test detects antibodies produced in response to Yersinia bacteria, supporting investigation of previous or recent infection.
The test assesses 1 specialist infection biomarker: Yersinia Antibodies.
Yersinia enterocolitica and Yersinia pseudotuberculosis are bacterial pathogens capable of causing gastrointestinal infection.
Transmission is commonly associated with contaminated food or water.
Undercooked pork is one recognised source of Yersinia enterocolitica infection.
Acute infection can cause diarrhoea, abdominal pain and fever.
Pain can sometimes be particularly prominent in the right lower abdomen and can resemble appendicitis.
Antibody testing differs from stool culture or stool PCR.
Direct stool testing looks for the organism during active gastrointestinal infection.
Serology instead measures the immune response and can therefore remain useful after the acute infection has passed.
This can be important when someone develops delayed complications.
Yersinia is a recognised trigger of reactive arthritis, where joint inflammation develops after the gastrointestinal infection itself has improved.
Antibodies can persist after infection, so a positive result does not necessarily mean that viable bacteria are still present.
The result should therefore be interpreted alongside symptom timing, travel or food history and any previous stool microbiology.
What Does the Yersinia Antibodies Test Check?
The test detects antibodies produced against Yersinia species following infection. This test measures 1 specialist biomarker.
Yersinia Antibodies
Measures immune antibodies associated with previous or recent Yersinia infection, supporting investigation of delayed gastrointestinal or post-infectious complications.
Who May Benefit From the Yersinia Antibodies Test?
Yersinia serology can be useful when the acute gastrointestinal illness has passed or when post-infectious complications are being investigated.
People with persistent symptoms after suspected bacterial gastroenteritis - Antibodies can remain detectable when stool tests have become negative.
People with joint pain developing after diarrhoeal illness - Yersinia is a recognised trigger of reactive arthritis.
People with previous severe abdominal pain resembling appendicitis - Yersinia can cause terminal ileitis and mesenteric lymphadenitis.
People with a history of foodborne illness involving pork or contaminated food - These are recognised exposure routes.
People with previous negative stool culture but continuing clinical suspicion - Serology can provide evidence of earlier exposure.
People with unexplained post-infectious inflammation - Yersinia antibodies can contribute to a broader assessment.
People with a previous positive Yersinia result - Repeat testing may occasionally help clarify antibody trends.
People referred by a gastroenterologist or rheumatologist - Serology can support investigation of delayed complications.
How to Prepare
Antibiotics do not immediately remove antibodies already produced by the immune system.
The test is most useful when the timing of the original illness is known.
Symptoms and Reasons to Consider the Yersinia Antibodies Test
Yersinia infection can cause gastrointestinal symptoms during acute illness and inflammatory symptoms afterwards.
Persistent or recurrent diarrhoea - Yersinia can cause bacterial gastroenteritis.
Abdominal pain or cramping - Infection can cause significant gastrointestinal inflammation.
Right lower abdominal pain - Yersinia can occasionally mimic appendicitis.
Fever during a previous gastrointestinal illness - Systemic symptoms can accompany acute infection.
Joint pain after diarrhoea - Reactive arthritis can occur after Yersinia infection.
Unexplained inflammatory symptoms following food poisoning - Serology can provide evidence of past infection.
A positive antibody result does not establish that active Yersinia infection is still present.
Severe current diarrhoea, dehydration, blood in the stool, persistent fever or severe abdominal pain requires clinical assessment and may require direct stool testing.
How to Book Your Yersinia Antibodies Test
The Yersinia Antibodies test can be booked privately for serological assessment of previous or recent Yersinia infection.
Choose the Yersinia Antibodies
Select the individual Yersinia antibody blood test online.
Select your sample collection option
Choose an in-clinic blood draw or professional home or hotel phlebotomy where suitable.
Attend your appointment
A trained healthcare professional collects the required venous blood sample.
Laboratory analysis
Your serum undergoes specialist measurement of Yersinia Antibodies.
Receive your results securely
Your authorised result is delivered securely and can be interpreted alongside gastrointestinal history, stool testing and joint symptoms.
When Will I Receive My Results?
The current live London Blood Tests page lists a turnaround of approximately 6 days after laboratory receipt for Yersinia Antibodies.
The specimen undergoes specialist infectious-disease serology, laboratory quality-control procedures and result authorisation.
Understanding Your Results
A negative result means Yersinia antibodies were not detected according to the laboratory method.
This reduces the likelihood of previous infection but does not exclude very early infection or every case.
A positive result indicates that the immune system has produced antibodies associated with Yersinia exposure.
It does not prove that active bacteria remain within the gastrointestinal tract.
Antibodies can persist for months or longer after infection.
The result is particularly useful when interpreted alongside the timing of symptoms.
Where acute infection is still suspected, stool PCR or culture can provide more direct evidence.
Where reactive arthritis is being investigated, the relationship between the gastrointestinal illness and subsequent joint symptoms is important.
Why Book With London Blood Tests?
London Blood Tests provides private Yersinia serology for investigation of previous infection and post-infectious symptoms.
Detects the immune response to Yersinia - The test can provide evidence after the acute gastrointestinal phase has passed.
Useful when stool testing is negative later - Antibodies can remain detectable after bacterial shedding falls.
Relevant to reactive arthritis - Yersinia is a recognised bacterial trigger.
Supports investigation of persistent gastrointestinal symptoms - Previous infection can be considered within a broader assessment.
Simple blood sample - Stool collection is not required for antibody testing.
Specialist serology analysis - Samples undergo dedicated laboratory testing.
Professional blood collection - Clinic and suitable home or hotel phlebotomy appointments are available.
Clear pricing - The Yersinia Antibodies test costs £157.99.
Private Yersinia Antibodies Blood Test in London
London Blood Tests provides private Yersinia Antibodies testing for people requiring investigation of previous Yersinia exposure.
The test costs £157.99 and measures 1 specialist biomarker.
Results are expected approximately 6 days after laboratory receipt.
The test detects antibodies and does not by itself confirm active gastrointestinal infection.