Table 1.

Detection of Apis mellifera Filamentous virus (AmFV), Nosema ceranae and C. mellificae/L. passim from individual bees at 0, 1, 2 or 3 weeks after emergence (weeks p.e.) and in winter bees (WB) (n = 24 workers from 3 colonies). +: Percentage of PCR positive intestines. n: Samples not analyzed due to failed DNA extraction.

GUTS	AmFV					N. ceranae					Trypanosomes
Weeks p.e.	0	1	2	3	WB	0	1	2	3	WB	0	1	2	3	WB
Colony A		+		+	+				+	+
		+		+	+					+
		+	n	+	+			n	+	+			n
			+		+			+	+	+			+	+
		+	+	+	+		+		+	+			+	+
		+		+	+					+				+	+
			+	+	+			+		+				+
		+	+	+	+		+		+	+					+
Colony B		+			+			+	+				+	+	+
			+		+			+	+	+				+
		+	+		+		+		+	+					+
		+	+		+		+		+					+
		+	+		+				+	+				+	+
		+		+	+				+						+
		+			+				+	+			+
		+			+					+				+	+
Colony C			+	+	+			+	+	+			+
		+		+	+			+		+					+
			+	+	+								+
		+	+	+	+			+	+	+			+	+	+
		+	+	+	+					+					+
		+	+	+					+	+					+
			+	+	+				+	+					+
		+	+		+				+	+					+
pos. (%)	0	75	65	63	96	0	17	30	71	83	0	0	30	42	54