Six of these were classified as frequent persisters (being isolated 5 times up to 17-months apart), others were identified as sporadic (recovered by culture in 2e4 separate samples taken at least 1 month apart).
Six of these were classified as frequent persisters (being isolated 5 times up to 17-months apart), others wereidentified as sporadic (recovered by culture in 2e4 separate samples taken at least 1 month apart).