Table 1.

Number of hemolymph samples in each age group of workers (1 d, 7 d, 14 d and 21 d) in the three consecutive years.

	Sample Quantity
Year	1 DAY		7 DAYS		14 DAYS		21 DAYS
	SMC	STC	SMC	STC	SMC	STC	SMC	STC
2019	25	25	25	25	20	20	20	20
2020	10	10	20	20	20	20	20	20
2021	10	10	20	20	20	20	20	20

SMC—workers reared in small-cell combs; STC—workers reared in standard-cell combs.