Table 1

Heartworm isolates, study locations and animal details.

Study Isolate of D. immitis Study location Animals
Sex Bodyweight at treatment (kg) Age at Infection (months)
Study 1 Berkeleya Waverly NY, USA 10 males, 10 females 2.4–5.5 6.1–6.4
Study 2 Georgia IIb Athens GA, USA 10 males, 10 females 2.0–3.0 3.5–3.7

The Berkeley isolate was obtained in Berkeley County (South Carolina, USA) in April 2014 and maintained in laboratory conditions with three passages since validation in December 2014 at TRS Labs.


The Georgia II isolate was obtained in Vidalia (Georgia, USA) in April 2013 and maintained in Laboratory conditions with one passage since validation in December 2013 at TRS Labs.

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