The Effectiveness of Anti-R. equi Hyperimmune Plasma against R. equi Challenge in Thoroughbred Arabian Foals of Mares Vaccinated with R. equi Vaccine

Table 3

IL-4 (pg/mL) and IFN-γ (ng/mL) concentration in challenged foals.

Foal group	Foal number	Day 0	Day 10	Day 20	Day 30
		IL-4/IFN-γ	IL-4/IFN-γ	IL-4/IFN-γ	IL-4/IFN-γ
Vaccine + HI plasma	1	<16/<0.01	<16/0.01	<16/0.02	128/0.05
	2	<16/<0.005	<16/0.005	<16/0.01	128/0.05
	3	<16/<0.005	<16/0.005	<16/0.01	32/0.05
	4	<16/<0.005	<16/0.005	<16/0.01	32/0.05
	Mean	<16/<0.0075	<16/0.0075	<16/0.015	80/0.05
Control	5	<16/<0.005	<16/0.005	*	*
	6	<16/<0.005	<16/0.005	<16/0.001	32/0.005
	7	<16/<0.005	*	*	*
	8	<16/<0.005	<16/0.005	<16/0.01	32/0.02
	Mean	<16/<0.005	<16/0.005	<16/0.0055	32/0.012

∗Because the foals died, IL-4 and IFN-γ concentration were not measured on these days.