Table 1. Cumulative health impact of recurrent exposures.

	Health measures		Immune measures
	Body condition	Haematocrit	Sed. Rate	Nitric Oxide	Granulocyte	Agranulocyte
Fixed
Session	F1,26.9 = 3.55	F1,36.7 = 3.06	F1,49 = 0.06	F1,46 = 3.49	F1,47 = 0.50	F1,47 = 21.0 ***
	−0.019 ± 0.010	−0.027 ± 0.015		0.02 ± 0.01		0.43 ± 0.09
Session * Borrelia	F1,27.1 = 13.2 **	F1,35.8 = 0.30	F1,47 = 0.05	F1,46 = 2.84	F1,45 = 0.35	F1,43.9 = 0.07
	0.055 ± 0.015			−0.03 ± 0.02
Session * ticks	F1,26 = 2.0	F1,37.4 = 6.85 *	F1,48 = 0.58	F1,46 = 5.62 *	F1,46 = 2.41	F1,46 = 0.46
		1.5 ± 0.6 E−3		−1.1 ± 0.4 E−3
Session * ticks * Borrelia	F1,24.9 = 0.25	F1,34.5 = 0.36	F1,46 = 2.41	F1,46 = 4.9 *	F1,44 = 0.45	F1,44 = 3.91
				1.6 ± 0.7 E−3
Random
Bird individual	± 0.4 E−3	1.0 ± 1.1 E−4	0.0 ± 0.0	0.0 ± 0.0	2.1 ± 0.0 E−17	0.0 ± 0.0
Residual	2.5 ± 0.7 E−4	3.7 ± 1.1 E−4	4.5 ± 0.9 E−3	2.2 ± 0.5 E−5	2.2 ± 0.5	1.0 ± 0.2

Summary of the Type III - tests of the generalized linear mixed models of the change in the great tit’s physiological parameters (‘Δ Cumulative’, Fig. 1) in dependence of the Borrelia infection rate in the ticks and the total number of ticks that fed on the birds. Reported estimates and significance levels of the non-significant fixed effects are those before final exclusion in the stepwise selection. Statistics and estimates for the final model are put in bold.

***, **, *, ‘ ’: P-value respectively <0.001; <0.01; <0.05; >0.05.