TABLE 3.

Generalized linear mixed model (GLMM) analysis.

	Variables	Estimate	Standard error	Z Values	P
Complete immune trial in foundresses and workers (YP4 vs. YH1 strains)	YH1-C	–0.511	0.179	–2.86	0.004
	YP4-C	–0.374	0.183	–2.04	0.041
	Caste	−2,894	1.800	–1.61	0.108
	YH1 ∗ Caste	0.815	0.345	2.34	0.019
	YP4 ∗ Caste	0.079	0.350	0.23	0.820
Foundresses	YH1-C	–0.425	0.213	–2.00	0.046
	YP4-C	–0.490	0.161	–3.04	0.002
	Season	3,424	0.227	15.11	<0.001
	YH1 ∗ Season	–0.083	0.303	–0.27	0.785
	YP4 ∗ Season	0.312	0.271	1.15	0.251
Workers	YH1-C	0.304	0.404	0.75	0.45
	YP4-C	–0.295	0.404	–0.73	0.46

Comparison of single variables (combination of treatment, caste, and season) by using GLMM, on bacterial clearance observed in all tested foundresses and workers.