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Table 1 Adult heartworms at necropsy of cats in Group C (infected untreated) on Day 510 PI

From: The progression of heartworm associated respiratory disease (HARD) in SPF cats 18 months after Dirofilaria immitis infection

Cat number

Viable adult wormsa (male, female)

Dead worms or fragments

E189

0 (0, 0)

2 dead

F339

1 (1, 0)

1 dead 2 fragments

G365

3 (0, 3)

5 fragments

G409

1 (1,0)

8 fragments

F362

1 (0, 1)

5 fragments

F370

0 (0, 0)

3 dead

G006

1 (0, 1)

12 fragments

F194

3 (1, 2)

2 fragments

E297

1 (0,1)

1 fragments

F063b

> 10 immature

>10 fragments

  1. aViability of adult worms was based on motility in warmed Hanks solution after removal. Fragments are sections of dead adults and not a result of dissection during removal
  2. bCat died acutely on Day 168