Antibodies to SA

Infection DiagnosticsImmunity & InflammationBlood

This panel measures antibodies against a specific bacterial pathogen the immune system has previously encountered. Antibody levels typically rise weeks after first exposure and decline gradually if the pathogen is no longer being encountered.

Why it matters: A higher antibody level can indicate recent exposure or active immune response. The marker is most useful in the right clinical context — interpreted alongside symptoms, timing of any recent illness, and other laboratory findings.

Reference Range
0.0 – 1.0AU/mL
0
1LowNormalHigh
What Moves It

May increase with:

Streptococcal infection
Autoimmune disorders

May decrease with:

Immunosuppression
Early infection phase
Associated Conditions
Rheumatic feverPost-streptococcal glomerulonephritis
Related Markers
ASO titreCRP
Common questions

What is Antibodies to SA?

This panel measures antibodies against a specific bacterial pathogen the immune system has previously encountered. Antibody levels typically rise weeks after first exposure and decline gradually if the pathogen is no longer being encountered.

What might a high or low Antibodies to SA mean?

A higher antibody level can indicate recent exposure or active immune response. The marker is most useful in the right clinical context — interpreted alongside symptoms, timing of any recent illness, and other laboratory findings.

What is the typical reference range for Antibodies to SA?

The general-population reference range shown here is 0 – 1 AU/mL. Reference ranges describe the general population and are not a personal target — discuss your results with your physician.

What can affect Antibodies to SA?

It may be higher with: Streptococcal infection, Autoimmune disorders. It may be lower with: Immunosuppression, Early infection phase.

More in Infection Diagnostics
Anti-HCV AntibodyAnti-SARS-CoV-2 IgGCytomegalovirus IgGHepatitis B Surface AntigenHerpes Simplex Virus 1/2 IgGHIV Antibody/Antigen

Track your Antibodies to SA over time

Upload your lab report and see where your values fall.

Get Started Free