Streptococcus Pneumoniae IgG 23 Serotypes
This blood test measures IgG antibodies against 23 Streptococcus pneumoniae serotypes. It helps assess immune protection and response to pneumococcal vaccination.
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Overview of the Streptococcus Pneumoniae IgG 23 Serotypes Test
The Streptococcus Pneumoniae IgG 23 Serotypes test is a specialist blood profile assessing IgG antibodies against 23 pneumococcal serotypes.
Streptococcus pneumoniae can cause a range of infections, including pneumonia, sinusitis, otitis, bacteraemia and meningitis.
This test does not diagnose active pneumococcal infection.
Instead, it is principally used to assess antibody immunity and vaccine response.
Serotype-specific antibody measurements can be particularly useful during investigation of suspected functional antibody deficiency.
A person may have broadly normal total Immunoglobulin concentrations while still having an inadequate response to selected vaccine antigens.
For this reason, pneumococcal antibody testing may be considered alongside Tetanus Antibody, Haemophilus B Influenzae Antibodies, Meningococcal Antibodies and quantitative Immunoglobulins.
The Streptococcus Pneumoniae IgG 23 Serotypes test costs £99 and follows a specialist serology pathway.
What Does the Streptococcus Pneumoniae IgG 23 Serotypes Test Check?
The profile assesses IgG antibody responses across 23 pneumococcal serotypes.
23 individual Streptococcus pneumoniae serotype IgG measurements - Measures antibody concentrations against the 23 pneumococcal serotypes included within the specialist assay.
Who May Benefit From the Streptococcus Pneumoniae IgG 23 Serotypes Test?
The profile is principally intended for specialist assessment of vaccine response and functional antibody immunity.
People with recurrent bacterial respiratory infections - Pneumococcal antibody responses may form part of immune investigation.
People with suspected antibody deficiency - Serotype-specific responses provide functional information beyond total Immunoglobulins.
People undergoing pre- and post-vaccination assessment - Antibodies may be compared before and after pneumococcal vaccination.
People with normal Immunoglobulins but recurrent infections - Specific antibody deficiency may still warrant investigation.
People under the care of an immunologist - Pneumococcal responses are commonly assessed within structured immune work-ups.
People with a previous poor vaccine response - Repeat testing may help evaluate response after clinician-directed vaccination.
How to Prepare
Pre- and post-vaccination testing should be performed according to a clinician-directed protocol.
Do not arrange vaccination solely to alter the result without appropriate clinical guidance.
Symptoms and Reasons to Consider the Streptococcus Pneumoniae IgG 23 Serotypes Test
Low pneumococcal antibody concentrations do not cause one specific symptom pattern.
Recurrent sinus infections - Repeated bacterial infections can prompt functional antibody assessment.
Recurrent pneumonia or lower-respiratory infections - Specialist immune investigation may be appropriate.
Repeated ear infections - Particularly when unusually frequent or severe.
Previous inadequate vaccine-response results - Repeat serotype testing may be useful.
Known or suspected immune deficiency - Pneumococcal antibodies can provide functional information.
A clinical immunologist has requested vaccine-response testing - This is a common specialist indication.
This test does not diagnose active pneumococcal pneumonia, meningitis or sepsis.
Severe fever, breathing difficulty, confusion, neck stiffness or suspected invasive infection requires urgent medical assessment.
How to Book Your Streptococcus Pneumoniae IgG 23 Serotypes Test
This specialist profile is arranged through the appropriate laboratory pathway.
Choose the Streptococcus Pneumoniae IgG 23 Serotypes Test
Request the £99 specialist pneumococcal antibody profile.
Select your sample collection option
Choose in-clinic phlebotomy (+£35) or a home visit from a phlebotomist (+£60).
Attend your appointment
A venous blood sample is collected and vaccination history should be documented.
Laboratory analysis
IgG responses are measured against the 23 serotypes within the assay.
Receive your results securely
Your specialist antibody report is returned securely.
When Will I Receive My Results?
The expected turnaround should be confirmed at the time of booking.
Specialist serotype-specific antibody testing may take longer than routine serology.
Understanding Your Results
Each serotype is interpreted separately according to the laboratory assay.
The number of serotypes showing an adequate antibody response can be clinically relevant during vaccine-response assessment.
Interpretation also depends on age, vaccination history and whether the sample was collected before or after vaccination.
One low serotype result does not independently diagnose an immunodeficiency.
A specialist may assess the overall proportion and magnitude of responses across the panel.
Why Book With London Blood Tests?
London Blood Tests provides access to specialist pneumococcal serotype testing.
23 pneumococcal serotypes - The profile provides substantially more detail than one total antibody measurement.
Useful for vaccine-response testing - Pre- and post-vaccination assessment can evaluate functional antibody production.
Relevant to immune deficiency investigation - Serotype-specific antibodies provide functional information.
Specialist laboratory processing - The sample follows the appropriate specialist serology pathway.
Can complement other vaccine-response tests - Hib, Tetanus and Meningococcal antibodies can provide additional information.
Professional blood collection - The specialist specimen is collected and handled correctly.
Private Streptococcus Pneumoniae IgG 23 Serotypes Blood Test in London
London Blood Tests provides private Streptococcus Pneumoniae IgG 23 Serotypes testing.
The profile is designed for specialist antibody-immunity and vaccine-response assessment rather than diagnosis of active pneumococcal infection.