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The combination of IMBs and S. typhi CMCC 50618 in SEM. (A) Bare IMBs. IMBs appear to be small aggregation of a couple of beads; (B) S. typhi CMCC 50618 only. (C) S. typhi CMCC 50618 was captured by IMBs. IMBs appear to be large aggregation of dozens of beads, which helps the binding of bacteria.
