Infectious disease monitoring of the endangered Hawaiian monk seal

A. Alonso Aguirre, Thomas J. Keefe, John S. Reif, Lizabeth Kashinsky, Pamela K. Yochem, Jeremiah T. Saliki, Jeffrey L Stott, Tracey Goldstein, J. P. Dubey, Robert Braun, George Antonelis

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

As part of conservation efforts between 1997 and 2001, more than 25% (332 animals) of the endangered Hawaiian monk seal (Monachus schauinslandi) population was sampled in the northwestern Hawaiian Islands. Serum samples were tested for antibodies to viruses, bacteria, and parasites known to cause morbidity and mortality in other marine mammal species. Antibodies were found to phocine herpesvirus-1 by using an enzyme-linked immunosorbent assay, but seropositive results were not confirmed by virus neutralization test. Antibodies to Leptospira bratislava, L. hardjo, L. icterohaemorrhagiae, and L. pomona were detected in seals from several sites with the microagglutination test. Antibodies to Brucella spp. were detected using 10 conventional serologie tests, but because of inconsistencies in test results and laboratories used, and the lack of validation by culture, the Brucella serology should be interpreted with caution. Antibodies to B. canis were not detected by card test. Chlamydophila abortus antibodies were detected by complement fixation (CF) test, and prevalence increased significantly as a function of age; the low sensitivity and specificity associated with the CF make interpretation of results difficult. Antibodies to Toxoplasma gondii and Dirofilaria immitis were rarely found. There was no serologic evidence of exposure to four morbilliviruses, influenza A virus, canine adenovirus, caliciviruses, or other selected viruses. Continuous surveillance provides a means to detect the introduction or emergence of these or other infectious diseases, but it is dependent on the development or improvement of diagnostic tools. Continued and improved surveillance are both needed as part of future conservation efforts of Hawaiian monk seals.

Original languageEnglish (US)
Pages (from-to)229-241
Number of pages13
JournalJournal of Wildlife Diseases
Volume43
Issue number2
StatePublished - Apr 2007

Fingerprint

disease surveillance
infectious disease
infectious diseases
antibody
Communicable Diseases
antibodies
Antibodies
monitoring
virus
Brucella
Viruses
fixation
Canine Adenoviruses
Chlamydophila
Morbillivirus
testing
Brucella melitensis biovar Canis
Canine adenovirus A
Leptospira interrogans serovar hardjo
Chlamydophila abortus

Keywords

  • Brucella
  • Chlamydophila
  • Hawaiian monk seal
  • Leptospira bratislava
  • Monachus schauinslandi
  • Phocine herpesvirus
  • Serology
  • Toxoplasma gondii

ASJC Scopus subject areas

  • veterinary(all)

Cite this

Aguirre, A. A., Keefe, T. J., Reif, J. S., Kashinsky, L., Yochem, P. K., Saliki, J. T., ... Antonelis, G. (2007). Infectious disease monitoring of the endangered Hawaiian monk seal. Journal of Wildlife Diseases, 43(2), 229-241.

Infectious disease monitoring of the endangered Hawaiian monk seal. / Aguirre, A. Alonso; Keefe, Thomas J.; Reif, John S.; Kashinsky, Lizabeth; Yochem, Pamela K.; Saliki, Jeremiah T.; Stott, Jeffrey L; Goldstein, Tracey; Dubey, J. P.; Braun, Robert; Antonelis, George.

In: Journal of Wildlife Diseases, Vol. 43, No. 2, 04.2007, p. 229-241.

Research output: Contribution to journalArticle

Aguirre, AA, Keefe, TJ, Reif, JS, Kashinsky, L, Yochem, PK, Saliki, JT, Stott, JL, Goldstein, T, Dubey, JP, Braun, R & Antonelis, G 2007, 'Infectious disease monitoring of the endangered Hawaiian monk seal', Journal of Wildlife Diseases, vol. 43, no. 2, pp. 229-241.
Aguirre AA, Keefe TJ, Reif JS, Kashinsky L, Yochem PK, Saliki JT et al. Infectious disease monitoring of the endangered Hawaiian monk seal. Journal of Wildlife Diseases. 2007 Apr;43(2):229-241.
Aguirre, A. Alonso ; Keefe, Thomas J. ; Reif, John S. ; Kashinsky, Lizabeth ; Yochem, Pamela K. ; Saliki, Jeremiah T. ; Stott, Jeffrey L ; Goldstein, Tracey ; Dubey, J. P. ; Braun, Robert ; Antonelis, George. / Infectious disease monitoring of the endangered Hawaiian monk seal. In: Journal of Wildlife Diseases. 2007 ; Vol. 43, No. 2. pp. 229-241.
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