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  3. Anti-Streptolysin O (ASO)

Anti-Streptolysin O (ASO)

Shows a recent strep infection — important in rheumatic fever.

Streptococcus is a leading cause of tonsillitis in children. If poorly treated it can affect joints and the heart (rheumatic fever).

ASO rises one to three weeks after the infection; the doctor reads it together with symptoms.

Preparation before the test

  • No fasting needed; it can be done any time.

This information is for awareness only and is not a substitute for medical advice — your treating doctor interprets the result for your case.

Related tests

Immunology & VirusesCRP

C-Reactive Protein (CRP)

A fast, sensitive marker of inflammation and infection — rises within hours.

  • Blood sample
  • No fasting
  • Within 4 hours
  • Available at home
150 EGP
Immunology & VirusesHCV

Hepatitis C Antibody (HCV Ab)

Detects exposure to hepatitis C — today’s treatment cures most cases.

  • Blood sample
  • No fasting
  • Within 6 hours
  • Available at home
220 EGP
Immunology & VirusesHBsAg

Hepatitis B Surface Antigen (HBsAg)

Detects hepatitis B infection — important before marriage, pregnancy and surgery.

  • Blood sample
  • No fasting
  • Within 6 hours
  • Available at home
220 EGP