Further studies on rheumatic fever epidemiology

Mallén, M. Salazár; Evans, Mary; Balcázar, Josefina

doi:10.1016/0002-8703(57)90345-9

Cited by 10 publications

(2 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Dunbar & Erwa (1967) found that lesst han 1 % of children amongst whom 48 % had ASO titres of over 166 units had haemolytic streptococci in their throats. Mallen et al (1957) could isolate group A haemolytic streptococci from throat swabs of only three out of 102 people whereas 55 % showed high ASO values.…”

Section: Resultsmentioning

confidence: 95%

See 1 more Smart Citation

Antistreptolysin O titres amongst children in a rural area of Ceylon

Gunatillake

Perera

1970

J. Hyg.

View full text Add to dashboard Cite

SUMMARYAntistreptolysin 0 titres in the sera of children in a rural population of Ceylon were determined, to establish the upper limit of the normal ASO titres in nonrheumatic children, and to compare these ASO titres with results of surveys done in other countries.Swabs were taken from throats and ulcers of the children examined and cultured specifically for group A haemolytic streptoccoci. Of a total of 257 children, 29-5 % had ASO titres of over 166 Todd units. The greatest number of children showed ASO values between 100 and 166 units. The percentage of children showing values over 166 units increased with age until a maximum of 54 % was reached between 9 and 10 years. Group A haemolytic streptococci were isolated from five throat swabs, but there were no isolations from ulcers. The values obtained from this survey have been compared with those from a few other developing countries.

show abstract

Section: Resultsmentioning

confidence: 95%

“…Group C and G streptococci which are known to infect human beings produce streptolysin 0. Mallen, Evans & Balcazar (1957) report that they isolated group G haemolytic streptococci from 11 % of people examined in a tropical climate.…”

Section: Resultsmentioning

confidence: 99%