TABLE 5.

Coagulase activity of parent and passaged staphylococci.

Bacteria	Time (h)	Activity for passage
		P0	P10	X10
S. aureus WIBG 1.2	0.5	++	++	++
	1	+++	+++	+++
	2	++++	++++	++++
	3	++++	++++	++++
S.aureus WIBG 1.6	0.5	++++	-	-
	1	++++	-	+
	2	++++	++	+++
	3	++++	+++ +	+ +++
MRSA	0.5	++	++	++
	1	+++	+++	+++
	2	++++	++++	++++
	3	++++	++++	++++
S.epidermidis	0.5	-	-	-
	1	-	-	-
	2	-	-	-
	3	-	-	-

Tubes were observed for signs of coagulation over 3 h and scored on a five- point scale according to the manufacturer’s guidelines as follows: -, no coagulation detected; +, small separate clots; ++, small combined clots; +++, extensively coagulated clots; ++++, complete coagulation.