Pig-hunting dogs are an at-risk population for canine heartworm (Dirofilaria immitis) infection in eastern Australia

Table 1 Summary of 566 dogs tested for Dirofilaria immitis antigen across eastern Australia 2016–2019

Cohort	Locality	Age^a	Positive/total		Canine heartworm prophylaxis
Cohort	Locality	Age^a	DiroChek^®	Anigen Rapid^®	Canine heartworm prophylaxis
Queensland
Cohort 1	Northern	3 (0.1–13)	1^b/42	1^b/42	None or intermittent
Cohort 1	Central	3 (0.1–9)	12/62	11/62	None or intermittent
New South Wales
Cohort 2	Remote western	1 (0.5–12)	0/332	nd	None
Cohort 3	Goulburn	9 (1–15)	0/45	nd	None
Cohort 4	Greater Sydney	5 (2–9)	nd	0/85	Rigorous in 54% (46/85)

^aMedian (minimum-maximum), in years
^bA 9-year-old male relocated from Central Queensland
Abbreviations: nd, not determined; DiroChek^®, DiroChek^® Heartworm Antigen Test Kit (Zoetis, NJ); Anigen Rapid^®, Rapid Test Kit Heartworm (CHW) Ag2.0 (Anigen, BioNote Inc., Seoul, South Korea)

ISSN: 1756-3305