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Table 1 Test results of the 16 pinnipeds surveyed to Dirofilaria immitis

From: Dirofilaria immitis in pinnipeds and a new host record

Animal

Species

Sex

Country of origin

Birth year

Antigen test

Knott test

qPCR

Signs

1

P. vitulina

M

Portugal

2012

2

P. vitulina

F

Canada

1989

Positive

Positivea

3

P. vitulina

M

Canada

1996

4

P. vitulina

F

Portugal

2007

Positive

5

P. vitulina

F

Canada

1989

Positive

Positive

6

H. grypus

M

Portugal

2002

7

H. grypus

F

Canada

1990

8

Z. californianus

M

Portugal

1996

Positive

9

Z. californianus

M

Spain

2003

10

Z. californianus

M

Belgium

1996

Positive

11

A. p. pusillus

M

Portugal

1998

Positive

12

A. p. pusillus

M

UK

1992

Positive

Positive

Cough, lethargy and exercise intolerance

13

A. p. pusillus

M

Sweden

2002

14

A. p. pusillus

M

Sweden

2002

15

A. p. pusillus

M

Portugal

1996

16

A. p. pusillus

M

Spain

1996

Total

 

12M/4F

  

2

1

7

  1. Abbreviations: F female, M male
  2. aAnimal in which transthoracic echocardiography was performed revealing the presence of linear mobile hyperechoic structures within the right ventricle and main pulmonary artery, consistent with heartworms