Table 1. Antibacterial activity of chitosan isolated from endolichenic fungi.

Treatment		Zone of inhibition (mm)
		V. cholerae	E. coli	S. typhi	S. aureus
Chitosan (µL)	50	–	–	–	–
	100	9	3	–	–
	150	10	7	–	6
Control	+ve	5	4	6	7
	–ve	–	–	–	–