Assessment of Anti-Streptolysin-O Titre in Healthy School Age Children in Alexandria- governorate

Abstract

Serology of streptococcal [GAS] group-A is used for post-streptococcal disease diagnoses, such as acute rheumatic fever, and occasionally for streptococcal pharyngitis diagnoses. Streptococcal titers vary according to a number of factors, including age and population. In developing countries, where GAS-induced impetigo is rare, the titers in healthy people are low in early childhood, peak in children aged 6 to 15, decrease in late adolescence and early adulthood, and then flatten off afterwards.