Outbreak of uncommon type of group A streptococcal pharyngitis among cadets at the Chulachomklao Royal Military Academy, Nakhon Nayok, Thailand.
No Thumbnail Available
Date
2002-06-22
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
A large outbreak of group A Streptococcus (GAS) pharyngitis occurred among 285 cadets at the Chulachomklao Royal Military Academy, Nakhon Nayok between September 22 and 27, 1996. An epidemiologic investigation was conducted to determine the source of infection. It seemed that respiratory droplets were the mechanism of spread, although foodborne transmission could not be excluded. To assess the presence of the outbreak strain in the community, conventional serotyping and molecular typing by emm sequencing were performed. The results demonstrated the advantage of molecular typing compared to serotyping and suggested that the outbreak was caused by the same strain. Interestingly, the involvement of the causative emm79 strain, which is an uncommon type of GAS disease, in a large number of patients may imply the invasive potential of this organism.
Description
Chotmaihet Thangphaet.
Keywords
Citation
Orataiwun P, Pimtanothai N, Nilgate S, Thitivichianlert S, Leelasuprasri S, Chantaratchada S, Cumchoo C, Nunthapisud P. Outbreak of uncommon type of group A streptococcal pharyngitis among cadets at the Chulachomklao Royal Military Academy, Nakhon Nayok, Thailand. Journal of the Medical Association of Thailand. 2002 Jun; 85 Suppl 1(): S378-82