Effect of DNA repair and replication mutants on <i>B. burgdorferi</i> inefction and switching at <i>vlsE</i> in C3H/HeN mice.

aTotal number of mice analyzed. bValues listed correspond to number of cultures positive/number of sites tested. cSwitching was determined by RFLP assay from available ear cultures at day 21. dFour mice infected with B. burgdorferi 5A4 were chosen as positive controls for organ harvests at day 35. eNumber of positive tissue sites/number of sites tested. fSwitching was determined by RFLP assay from available organ harvest cultures at day 35. gSwitching by RFLP was negative, but DNA sequencing revealed low frequency switching at vlsE in all cases.