Is this the study you are referring to?
http://aac.asm.org/content/early/2015/05/20/AAC.00864-15
(Also: http://www.northeastern.edu/news/2015/06/researchers-discovery-may-explain-difficulty-in-treating-lyme-disease/)
If I am reading this correctly (?), ceftriaxone, is indeed pulsed; however, after & in addition to the other abx pulsed-?
"Daptomycin, a membrane-active bactericidal antibiotic, killed stationary phase cells, but not persisters. Mitomycin C, an anti-cancer agent that forms adducts with DNA, killed persisters and eradicated both growing and stationary cultures of B. burgdorferi. Finally, we examined the ability of pulse-dosing an antibiotic to eliminate persisters. After addition of ceftriaxone, the antibiotic was washed away, surviving persisters were allowed to resuscitate, and antibiotic was added again. Four pulse-doses of ceftriaxone killed persisters, eradicating all live bacteria in the culture."
Post Edited (happyjo) : 6/12/2015 10:42:25 AM (GMT-6)