SARS-CoV-2 Antibodies

What's

SARS-CoV-2 antibodies are special proteins made by your body's defense system to fight the virus that causes COVID-19. They act like your body's soldiers, helping to protect you if the virus tries to attack again. These antibodies also work like a memory system, recognizing the virus and marking it for destruction if it comes back. If you have these antibodies in your blood, it could mean that your body has faced the virus before, even if you didn't feel sick. However, it's important to remember that just because you have these antibodies, it doesn't guarantee that you're completely safe from COVID-19.

If Your Levels Are High

Elevated levels of SARS-CoV-2 antibodies might suggest that your body has come across the virus causing COVID-19 before. This could be due to a past infection, getting vaccinated, or taking certain medications that boost your immune system. Your immune system creates these antibodies to help defend you against the virus, acting like your body's personal army. It's also possible that your body is just naturally good at making more antibodies than usual when faced with threats. Keep in mind, though, that having these antibodies doesn't guarantee total protection from COVID-19.

Symptoms of High Levels

Symptoms of high levels of SARS-CoV-2 Antibodies are typically not present, as these antibodies are a sign of your immune system's response rather than a cause of symptoms themselves.

If Your Levels are Low

Low levels of SARS-CoV-2 antibodies might mean that your body hasn't come across the virus causing COVID-19, or it hasn't made enough antibodies to be noticed. This can happen for different reasons, like when you were exposed to the virus, how your body reacts to it, or if you're taking certain medicines that can change how your immune system works. Sometimes, your body can get rid of the virus without making a lot of these specific antibodies, especially if you didn't have strong or any symptoms from the virus.

Symptoms of Low Levels

Symptoms of low levels of SARS-CoV-2 Antibodies may not be noticeable, as antibody levels do not directly correlate with the severity of symptoms or the presence of disease. In fact, individuals with low or undetectable antibody levels may have experienced asymptomatic or mild cases of COVID-19.

See References

Test for

SARS-CoV-2 Antibodies

Roche Elecsys Anti-SARS-CoV-2 S (Spike Antibody) by Boston Heart Diagnostics

Serum

The new Roche SARS-CoV-2 antibody assay has received FDA EUA for qualitative and semiquantitative detection of antibodies to the SARS-CoV-2 spike (S) protein’s receptor binding domain. Positive results indicate the development of active immunity after vaccination. Please be advised that Boston Heart Diagnostics policy states that practitioners cannot order labs on themselves or their immediate family members.

SARS-CoV-2 Semi-Quantitative Total Antibody, Spike by Access Labcorp Draw

Serum

This test looks for antibodies that indicate a recent or prior infection with COVID-19.

SARS-CoV-2 Total Antibody, Spike, Semi-Quantitative by Quest Diagnostics

Serum

SARS-CoV-2 Total Antibody, Spike, Semi-Quantitative - This test is intended as an aid in identifying individuals with an adaptive immune response to SARS-CoV-2 (COVID-19), indicating recent or prior infection. The results of this semi-quantitative test should not be interpreted as an indication of degree of immunity or protection from reinfection.

CONTENTS

What is it?

High Levels

Low Levels

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