How much does Group B Strep – Vaginal and Rectal (STM) cost at Wimpole Street?

£63 — the standard price that applies to everyone. There is no discounted members’ tier at Wimpole Street and nothing to join. Where a venous draw is needed, a phlebotomy fee is shown on the page before you book and is charged once per visit however many tests are taken.

What is the difference between a culture swab and a PCR swab?

Culture grows living organisms over one to several days and allows antibiotic sensitivity testing; it is the standard for most bacterial infections. PCR detects specific organisms’ genetic material within hours to a day or two and is used for viruses and some bacteria that are hard to grow. The nurse will take the swab type appropriate to the question.

How long do swab results take?

PCR results are typically reported within one to two working days of the swab reaching the laboratory. Bacterial culture takes 48 hours, and fungal or unusual organisms may take a week or more. The laboratory report is released to your secure portal when complete.

Can my child have a throat swab here?

Medical services at Wimpole Street are for patients aged 16 and over. Children with sore throats, ear infections or rashes should be seen by their NHS GP or NHS 111.

Can I do the swab myself?

Several tests in the catalogue are marked “self-collect” and come with a kit and instructions, including respiratory, MRSA and some genital swabs. For wound, eye, ear and throat swabs, a nurse-taken sample is generally more reliable.

Is a swab uncomfortable?

Throat and nasal swabs can make you gag or your eyes water for a moment, and wound swabs may sting briefly. The sensation passes within seconds and the nurse will explain what to expect before starting.

📍 Wimpole StreetOpening 1 Oct

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Individual Test

Group B Strep – Vaginal and Rectal (STM) Blood Test Marylebone

From 1 October 2026 — until then book at South Kensington or St Paul's. South Kensington · St Paul's

20 min appointment

Results: 3-5 days"

Blood sample

£63

Price

£63

Confidential Results

Secure online portal

Fast Results

3-5 days"

Professional Service

Experienced phlebotomists

Wimpole Street, Marylebone (opening 1 October 2026)

22 Wimpole Street, Marylebone, London W1G 8GQ

020 7183 0692

wimpolestreet@md.co.uk

Opens 1 October 2026

Opening hours from 1 October 2026

Monday: 9am – 6pm
Tuesday: 9am – 8pm
Wednesday: 9am – 6pm
Thursday: 9am – 8pm
Friday: 8am – 5pm
Saturday: 10am – 4pm
Sunday: Closed

Bond Street — about 6 minutes (Central, Jubilee & Elizabeth lines)
Oxford Circus — about 7 minutes (Central, Bakerloo & Victoria lines)

Wimpole Street, Marylebone

Group B Strep – Vaginal and Rectal (STM) is a swab tests test concerned with bacterial Infection, pregnancy Test and vagina, run on a swab. At Wimpole Street it is priced at £63 for everyone and, from 1 October 2026, a nurse or phlebotomist takes the sample at 22 Wimpole Street, Marylebone. The laboratory quotes 3-5 days; the report, with reference ranges, is delivered to your secure portal for you to discuss with your GP or a clinician.

swab tests · Wimpole Street

Group B Strep – Vaginal and Rectal (STM)’s place in swab tests testing

Sample: swab
Laboratory turnaround: 3-5 days
Appointment: 20 minutes
Standard price: £63

Who considers Group B Strep – Vaginal and Rectal (STM)

People often consider a throat swab if a sore throat is severe, prolonged or keeps returning, to distinguish streptococcal from viral infection.
A wound or skin infection that is not responding to first-line antibiotics is a common reason to culture before changing treatment.
Flu-like symptoms during the winter months may prompt a respiratory PCR panel, particularly for those who live with vulnerable relatives.
Recurrent ear or eye discharge sometimes warrants a swab to guide treatment.
Hospitals or surgeons may ask for MRSA screening before a planned operation.

What Group B Strep – Vaginal and Rectal (STM) measures

Group B Strep – Vaginal and Rectal (STM) is most often requested in connection with bacterial Infection, pregnancy Test, vagina, rectum, GBS Test and streptococcus Agalactiae, which is why it sits within the swab tests group at Wimpole Street.

Swab tests collect material from a surface — throat, nose, ear, eye, skin, wound or genital tract — and analyse it by culture, which grows and identifies bacteria or fungi and tests their sensitivity to antibiotics, or by PCR, which detects the genetic material of specific organisms quickly. Respiratory PCR panels test for COVID-19, influenza A and B and RSV from one nasal or throat swab; MRSA screens are used before hospital admission; and lesion swabs can identify herpes, varicella or other viruses in a rash. Site-specific swabs are named for where they are taken.

Preparing for your Group B Strep – Vaginal and Rectal (STM)

1Do not use antiseptic mouthwash, throat lozenges or nasal sprays for a few hours before a throat or nasal swab.
2If possible, delay starting antibiotics until after the swab has been taken; if you have already started, tell the nurse so the result can be interpreted.
3For skin or wound swabs, leave any dressing in place until the appointment and avoid applying creams that morning.
4Self-collect kits come with step-by-step instructions; the nurse can demonstrate the technique if you prefer.

Sample for this test: swab.

Understanding your Group B Strep – Vaginal and Rectal (STM) results

A culture that grows a recognised pathogen, together with its sensitivity pattern, helps to choose an antibiotic that is likely to work; growth of normal skin or throat flora is reported as such and generally does not need treatment. A positive PCR shows the organism’s genetic material was present on the swab, which usually indicates infection, though it can persist for a while after recovery. A negative swab lowers the likelihood of the organisms tested for but does not exclude infection elsewhere or by an organism not covered.

Swab results reflect what was present at the site sampled at that moment, and interpretation depends on technique, timing and whether antibiotics had already been started.

Related areas of testing at Wimpole Street: bacterial, parasitic and fungal infections, viral infections and immunity, urine tests, sexual health.

Pricing

Group B Strep – Vaginal and Rectal (STM)

Individual test

£63

Total

£63

Payment is collected at the clinic. The phlebotomy fee is charged once per visit, regardless of the number of tests booked.

How it works at Wimpole Street

From booking the Group B Strep – Vaginal and Rectal (STM) to reading your result

1
Choose your test
Select the Group B Strep – Vaginal and Rectal (STM) and any others you want run from the same visit. Until 1 October 2026 the identical test can be booked at South Kensington or St Paul’s.
2
Nurse-led sample
From 1 October 2026 the swab is taken at 22 Wimpole Street, Marylebone by our nursing team, led by Precious Agbonmamwen, Registered Adult Nurse (NMC 20H1641E). Identity is checked and any preparation questions answered first.
3
UKAS-accredited laboratory
The sample travels to a UKAS-accredited partner laboratory, whose methods and reference ranges match those used across the NHS and private sectors.
4
Laboratory report to your secure portal
The laboratory report is released to your secure portal — typically from 24 hours; the laboratory quotes 3-5 days for this test. It shows each value against the reference range and flags anything outside it; discuss the report with your GP or a clinician.

Marylebone, W1

Why test at Wimpole Street

Wimpole Street Medical & Dental opens at 22 Wimpole Street on 1 October 2026. Medical services are for patients aged 16 and over; registration with the CQC is in progress ahead of opening.

Wimpole Street, Marylebone (opening 1 October 2026)

22 Wimpole Street, Marylebone, London W1G 8GQ

020 7183 0692

wimpolestreet@md.co.uk

Opens 1 October 2026

Bond Street — about 6 minutes (Central, Jubilee & Elizabeth lines)
Oxford Circus — about 7 minutes (Central, Bakerloo & Victoria lines)

Bond Street is about six minutes on foot and Oxford Circus about seven, so the clinic suits people working across the West End.
Self-referral: you choose the test and book directly — no GP referral is needed, and the laboratory report is yours to take to your GP or a clinician.
Samples are taken by a nurse or phlebotomist at 22 Wimpole Street, Marylebone, in a clinic built for medical and dental care.

More swab tests tests

Other tests often considered alongside Group B Strep – Vaginal and Rectal (STM)

All blood tests at Wimpole Street

Frequently Asked Questions

A swab. A nurse or phlebotomist collects it at 22 Wimpole Street, Marylebone from 1 October 2026; the appointment allows time for identity checks and any preparation questions. The laboratory quotes 3-5 days for this test.

Ready to Book Your Test?

Wimpole Street opens 1 October 2026. Register your interest for the Marylebone diary, or book the same test now at South Kensington or St Paul's.

Important information about the Group B Strep – Vaginal and Rectal (STM) at Wimpole Street

Medical services at Wimpole Street Medical & Dental are for patients aged 16 and over.
This is a self-referral service: you choose the test and book directly — no GP referral is needed.
Nurse-led by Precious Agbonmamwen, Registered Adult Nurse (NMC 20H1641E), who oversees sample-taking standards, infection control and the patient pathway. The nursing team does not interpret results.
A laboratory result is not a diagnosis and this page is not a substitute for medical advice. We do not provide clinical interpretation of results — please discuss your report with your GP or a clinician, particularly if a value is flagged or you have symptoms.
CQC registration for Wimpole Street is in progress ahead of the opening on 1 October 2026; our South Kensington and St Paul’s clinics are CQC registered.
Your results are held on a secure portal and treated as strictly confidential, except where disclosure is required by law.
If you are seriously unwell, call 999. For urgent advice that is not an emergency, call NHS 111.