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Over-the-counter and direct-to-consumer testing for Group A streptococcus.

Yi Xiao1, Edward Ki Yun Leung2

  • 1Department of Pathology and Laboratory Medicine, Children's Hospital of Los Angeles, Los Angeles, CA, United States.

Clinical Biochemistry
|April 11, 2022
PubMed
Summary

Over-the-counter (OTC) and direct-to-consumer (DTC) tests offer accessible diagnostics for Group A Streptococcus (GAS) pharyngitis. This review explores their potential, challenges, and future outlook for improved patient engagement and outcomes.

Keywords:
Direct-to-consumer testingGroup A StreptococcusOver-the-counter testingPoint-of-care testing

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Area of Science:

  • Diagnostic testing
  • Microbiology
  • Public health

Background:

  • Over-the-counter (OTC) and direct-to-consumer (DTC) tests are increasingly popular for rapid, accessible diagnostics.
  • Group A Streptococcus (GAS) causes acute pharyngitis, necessitating timely diagnosis to prevent complications and transmission.
  • Accurate GAS diagnosis supports antibiotic stewardship and patient engagement in health management.

Approach:

  • This review examines the general landscape of OTC and DTC testing.
  • It discusses the clinical utility of Group A Streptococcus testing.
  • The review analyzes limitations and challenges of current GAS testing methodologies for OTC/DTC applications.

Key Points:

  • OTC/DTC tests offer convenience and patient empowerment.
  • Timely GAS diagnosis is crucial for preventing acute rheumatic fever and other serious conditions.
  • Current GAS testing methods face hurdles in OTC/DTC development.

Conclusions:

  • Future developments in OTC/DTC GAS testing hold promise for enhanced healthcare outcomes.
  • Addressing current limitations is key to realizing the full potential of these accessible diagnostic tools.
  • Improved testing can facilitate earlier intervention, reduce disease spread, and prevent severe sequelae.