Case definition
Recurrent inflammatory disease affecting large joints (arthritis), the heart (carditis), the brain (chorea), the skin (erythema marginatum) and subcutaneous tissue (subcutaneous nodules) occurring as sequelae of streptococcal upper respiratory tract infection.
Specimen
Serum for ASTO titres.
Laboratory
National Public Health Lab (Serology Section)
Timeline for investigation
6 weeks
Source: National Surveillance Manual
How it’s monitored
Notified as it occurs and followed up with an investigation report. The weekly bulletin gives confirmed cases for the year to date, beside last year’s.