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While most of the public has either been vaccinated and/or contracted covid-19, patients have a lot of questions about their level of risk…

  • How do I know if I’m protected?
  • How do I know if I have a sufficient level of antibodies?
  • When should I get a booster shot?
  • I had covid, am I still protected with those antibodies?

As the pandemic evolves with increasing vaccination rates and the circulation of new variants, research that advances our understanding of COVID-19 protective immunity becomes increasingly important.

Neutralizing antibodies block the virus’s ability to infect a host. Several studies have shown that neutralizing antibody level is a good biomarker for the correlate of protection against SARS-CoV-2 infection.1, 2, 3

Immune response to infection or vaccination can vary widely between individuals based upon multiple variables.

Over-the-counter antibody tests do not tell the whole story as they do not specifically identify SARS-CoV-2 Neutralizing Antibodies, and they do not quantify the amount present in a person’s sample.

AditxtScore™ is a 9-assay COVID-19 antibody test that provides greater precision and more detail about the strength of an individual’s response against the virus.

AditxtScore™ measures COVID-19 Neutralizing Antibodies combined with a proprietary algorithm to assess and translate clinical data into meaningful information for individuals.

This test is an important tool to help individuals, their families, and clinicians better understand and manage the relative risk of getting severe COVID-19 symptoms if infected.

PMLS is proud to offer AditxtScore™ as part of our comprehensive laboratory testing options.

Contact us today to order your AditxtScore™ testing kits.


1 – Bergwerk M, Gonen T, Lustig Y, et al.

COVID-19 breakthrough infections in vaccinated health care workers.N Engl J Med. 2021; 385: 1474-1484

2 – Khoury DS, Cromer D, Reynaldi A, et al.

Neutralizing antibody levels are highly predictive of immune protection from symptomatic SARS-CoV-2 infection. Nat Med. 2021; 27: 1205-1211

3 – Feng S, Phillips DJ, White T, et al.

Correlates of protection against symptomatic and asymptomatic SARS-CoV-2 infection. medRxiv. 2021;