TABLE 2.

Numbers of V. cholerae strains isolated by enrichment from Chesapeake Bay between January and July 1998

Mo	No. of strains
	Susquehanna River flats	Horn Point	Kent Island	SERC
January	0	0	0	0
February	0	0	0	0
March	0	0	0	0
April	7	8	0	1
May	0	10	1	3
June	2	32	33	32
July	0	18	22	20