Last reviewed: 21 Oct 2024
Last updated: 18 Jun 2024
Summary
Definition
History and exam
Key diagnostic factors
- child or adolescent age
- winter or spring season (in bacterial pharyngitis)
- summer/fall season (in enteroviral pharyngitis)
- rhinorrhea, nasal congestion, hoarseness, oral ulcers, and cough (in viral infection)
- sore throat
- pharyngeal exudate
- cervical adenopathy
- fever
- headache
- nausea, vomiting, and abdominal pain
- conjunctivitis
- maculopapular rash (in measles)
- Koplik spots (in measles)
- scarlatiniform rash (in group A Streptococcus [GAS] pharyngitis)
Full details
Other diagnostic factors
- sexual activity or abuse (in HIV, gonorrheal, or chlamydial infection)
- treatment failure of penicillin
- pharyngeal ulceration (in tularemia)
- pharyngeal gray membrane (in diphtheria)
Full details
Risk factors
- nasal colonization with group A Streptococcus (GAS)
- GAS-infected contact
- sexual activity or abuse
- ingestion of nondomestic meats
- immunocompromised host
- use of inhaled corticosteroids
- lack of immunization or vaccine failure
Full details
Diagnostic tests
1st tests to order
- rapid antigen test for group A Streptococcus (GAS)
- nucleic acid amplification (via polymerase chain reaction) for group A Streptococcus (GAS)
Full details
Tests to consider
- culture of throat swab for group A Streptococcus (GAS)
- culture or PCR of throat swab for gonococcus or chlamydia
- serum monospot for Epstein-Barr virus infection
Full details
Treatment algorithm
ACUTE
all patients
Contributors
Authors
Jeffrey R. Donowitz, MD
Pediatrician
Pediatric Infectious Diseases
University of Virginia
Charlottesville
VA
Disclosures
JRD declares that he has no competing interests.
Acknowledgements
Dr Jeffrey R. Donowitz would like to gratefully acknowledge Dr William A. Petri, Jr, a previous contributor to this topic.
Disclosures
WAP declares that he has no competing interests.
Peer reviewers
Richard Roberts, MD, JD, FAAFP, FCLM
Professor of Family Medicine
University of Wisconsin School of Medicine and Public Health
Madison
WI
Disclosures
RR declares that he has no competing interests.
Remco de Bree, MD, PhD
Otolaryngologist
Head and Neck Surgeon
VU University Medical Center
Amsterdam
The Netherlands
Disclosures
RdB declares that he has no competing interests.
Differentials
- Epiglottitis
- Retropharyngeal, peritonsillar, and lateral abscess
- Infectious mononucleosis
More DifferentialsGuidelines
- Guide to utilization of the microbiology laboratory for diagnosis of infectious diseases: 2024 update by the Infectious Diseases Society of America (IDSA) and the American Society for Microbiology (ASM)
- Pharyngitis (strep throat)
More GuidelinesPatient information
Sore throat
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