Words to Describe spirochaetes

How spirochaetes often is described ("________ spirochaetes")

• dead
• symbiotic
• certain
• similar
• most
• various
• syphilitic
• many
• termite
• anaerobic
• intestinal
• live
• few
• borne
• causative
• saprophytic
• slender
• delicate
• commensal
• thin
• oral
• pathogenic
• true
• larger
• harmless
• typical
• large
• numerous
• motile
• other
• parasitic