. 2022 Oct 26;20:76–88. doi: 10.1016/j.ijpddr.2022.10.005

Table 3.

Estimates of strongylid Egg Reappearance Periods (ERP) following moxidectin treatment in horses over the course of four decades. The table includes all publications that either calculated the percent Fecal Egg Count Reduction (FECR) during weeks post ivermectin treatment or presented Fecal Egg Count data allowing this calculation to me made. The definition of ERP was the week post treatment, where the mean FECR fell below 90%.

Study	Country	Estimate (weeks)
Taylor and Kenny (1995)^a	UK	14
Boersema et al. (1998)^a	Netherlands	15
Demeulenaere et al. (1997)^a	Belgium	>12
DiPietro et al., 1997b ^a	USA	>12
Rolfe et al. (1998)^b	Australia	13
Mercier et al. (2001)^b	Australia and Brazil	7
Martin-Downum et al. (2001)^a	USA	>16
Cirak et al. (2005)^a	Turkey	>25
Molento et al. (2008)	Brazil	4
Rossano et al. (2010)^b	USA	5
Lyons et al. (2011a)^a	USA	5, 6, and 8
Lyons et al. (2011b)^a	USA	5 and 6
Francisco et al. (2012)^a	Spain	5 and 8
Relf et al. (2014)^b	UK	8 and 9
Geurden et al. (2014)^b	Belgium	6, 10, 12, and >12
Geurden et al. (2014)^b	Italy	6, 12, and >12
Geurden et al. (2014)^b	Netherlands	6, 8, and >12
Mason et al. (2014)^b	USA	6
Sanna et al. (2016)^b	Italy	>21
Tzelos et al. (2017)^b	UK	6 and 10
Shea Porr et al. (2017)^a	USA	10
Bellaw et al. (2018)^a	USA	5
Abbas et al. (2021)^b	Australia	5
Nielsen et al. (2022c)^b	USA	5

FECR calculated from data presented.

FECR calculated by study authors