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Table 4 Presence and burden of nematode infections in juvenile harbour porpoises with and without pneumonias of different aetiologies

From: Clinical, pathological, and laboratory diagnoses of diseases of harbour porpoises (Phocoena phocoena), live stranded on the Dutch and adjacent coasts from 2003 to 2016

Lung pathology and aetiology No. of harbour porpoises infected (no. with light infection/no. with heavy infection)
Stenurus minor Torynurus convolutus/Halocercus sp. Pseudalius inflexus
No severe pneumonia (n = 20) 3 (3/0) 5 (4/1) 1 (1/0)
Severe pneumonia (n = 21) 2 (2/0) 14 (5/9) 11 (5/6)
Parasitic (n = 6) 1 4 (2/2) 4 (1/3)
Bacterial (n = 5) 1 (1/0) 2 (2/0) 2 (2/0)
Fungal (n = 2) 0 1 (1/0) 1 (1/0)
  1. Light = 1–100 nematodes (both lungs).
  2. Heavy ≥ 100 nematodes (both lungs).