JONES Criteria MAJOR
JONES Criteria MINOR
Diagnosis/Treatment
Group A Strep Characteristics
100

This major criterion involves inflammation of the heart, which can affect the endocardium, myocardium, or pericardium.

Pancarditis

100

This minor criteria looks for elevations in these two inflammatory markers.

What is CRP or ESR?

100

Rheumatic fever typically follows an infection with this organism.

What is Group A Streptococcus?

100

Group A Streptococcus has this shape under a microscope.

What are cocci?

200

This joint-related major criterion is typically migratory, starting in one joint and moving to another.

What is polyarthritis?

200

A minor criterion that is determined by comparing the patient’s body temperature to normal values, specifically looking for this threshold.

What is fever above 38.5°C (101.3°F)?

200

This diagnostic tool is used to confirm evidence of a prior Group A Streptococcal infection.

What are antistreptolysin O (ASO) titers?

200

The hemolytic pattern of Group A Streptococcus on blood agar.

What is beta-hemolysis?

300

This major criterion is characterized by rapid, irregular, and involuntary movements of the muscles.

What is Sydenham’s chorea?

300

This minor criterion involves joint pain without swelling, which can help support the diagnosis in the absence of polyarthritis.

What is polyarthralgia?

300

The first-line treatment for eradicating the Group A Streptococcus infection in rheumatic fever.

What is penicillin?

300

This protein on the surface of Group A Streptococcus plays a key role in virulence and immune evasion.

What is the M protein?

400

This major criterion presents as painless, firm nodules found on bony surfaces.

What are subcutaneous nodules?

400

This minor criterion, identified on an EKG, suggests electrical conduction abnormalities linked to inflammation.

What is a prolonged PR interval?

400

Long-term prophylaxis for preventing recurrent rheumatic fever involves this medication.

What is penicillin?

400

Group A Streptococcus is sensitive to this antibiotic, which is often used in diagnostic testing.

What is bacitracin?

M
e
n
u