Seroprevalence of Bartonella spp. in the endangered island fox (Urocyon littoralis)

Michael S. Namekata, Deana L. Clifford, Rickie W. Kasten, Jennifer B. Henn, David K. Garcelon, Timothy J. Coonan, Bruno B Chomel

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Bartonella clarridgeiae-like strains, presently B. rochalimae, were isolated in gray foxes (Urocyon cinereoargenteus) in mainland California. The objective of this study was to investigate the presence of Bartonella infection in the endangered island fox (Urocyon littoralis) found only on the Channel Islands off the Californian coast. Between 2001 and 2004, 263 serum samples were collected. Antibodies against Bartonella vinsonii subsp. berkhoffii (Bvb) and B. clarridgeiae (Bc) were detected using an immuno-fluorescence antibody test. Sixty-eight (25.8%) and 73 (27.7%) foxes were positive for Bvb and Bc, respectively. Seroprevalence was the highest on Santa Cruz Island (n = 36, Bvb = 80.5%; Bc = 86.1%) and Santa Rosa Island (n = 38, Bvb = 52.6%; Bc = 65.8%). On San Miguel and San Clemente Islands, seroprevalence for Bvb was 20% and 17.3% respectively, and 0% and 21.3% for Bc. Prevalence ranged between 0% and 5.1% on San Nicolas and Santa Catalina Islands. Foxes from Santa Rosa and Santa Cruz Islands were 17.5 times and 31.5 times as likely to be seropositive for Bvb and Bc than foxes from the other islands (95% confidence interval [95% CI] = 8.5, 36.7; 14.4, 70.2). There were no statistically significant differences for presence of Bartonella antibodies by sex, age, origin (captive vs. wild) or year of blood collection. This is the first report of exposure to Bartonella in the island fox population. Further studies are necessary to isolate these bacteria from foxes and determine factors associated with presence or absence of Bartonella species on specific islands.

Original languageEnglish (US)
Pages (from-to)184-187
Number of pages4
JournalVeterinary Microbiology
Volume136
Issue number1-2
DOIs
StatePublished - Apr 14 2009

Fingerprint

Bartonella clarridgeiae
Bartonella vinsonii subsp. berkhoffii
Bartonella
Seroepidemiologic Studies
Islands
seroprevalence
foxes
Urocyon cinereoargenteus
antibodies
Rosa
Antibodies
Channel Islands
Bartonella Infections
blood serum
Urocyon littoralis
fluorescent antibody technique
confidence interval
coasts
Fluorescence
gender

Keywords

  • Bartonella spp.
  • Emerging disease
  • Island fox
  • Serology
  • Urocyon littoralis

ASJC Scopus subject areas

  • Microbiology
  • veterinary(all)

Cite this

Namekata, M. S., Clifford, D. L., Kasten, R. W., Henn, J. B., Garcelon, D. K., Coonan, T. J., & Chomel, B. B. (2009). Seroprevalence of Bartonella spp. in the endangered island fox (Urocyon littoralis). Veterinary Microbiology, 136(1-2), 184-187. https://doi.org/10.1016/j.vetmic.2008.10.017

Seroprevalence of Bartonella spp. in the endangered island fox (Urocyon littoralis). / Namekata, Michael S.; Clifford, Deana L.; Kasten, Rickie W.; Henn, Jennifer B.; Garcelon, David K.; Coonan, Timothy J.; Chomel, Bruno B.

In: Veterinary Microbiology, Vol. 136, No. 1-2, 14.04.2009, p. 184-187.

Research output: Contribution to journalArticle

Namekata, MS, Clifford, DL, Kasten, RW, Henn, JB, Garcelon, DK, Coonan, TJ & Chomel, BB 2009, 'Seroprevalence of Bartonella spp. in the endangered island fox (Urocyon littoralis)', Veterinary Microbiology, vol. 136, no. 1-2, pp. 184-187. https://doi.org/10.1016/j.vetmic.2008.10.017
Namekata MS, Clifford DL, Kasten RW, Henn JB, Garcelon DK, Coonan TJ et al. Seroprevalence of Bartonella spp. in the endangered island fox (Urocyon littoralis). Veterinary Microbiology. 2009 Apr 14;136(1-2):184-187. https://doi.org/10.1016/j.vetmic.2008.10.017
Namekata, Michael S. ; Clifford, Deana L. ; Kasten, Rickie W. ; Henn, Jennifer B. ; Garcelon, David K. ; Coonan, Timothy J. ; Chomel, Bruno B. / Seroprevalence of Bartonella spp. in the endangered island fox (Urocyon littoralis). In: Veterinary Microbiology. 2009 ; Vol. 136, No. 1-2. pp. 184-187.
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abstract = "Bartonella clarridgeiae-like strains, presently B. rochalimae, were isolated in gray foxes (Urocyon cinereoargenteus) in mainland California. The objective of this study was to investigate the presence of Bartonella infection in the endangered island fox (Urocyon littoralis) found only on the Channel Islands off the Californian coast. Between 2001 and 2004, 263 serum samples were collected. Antibodies against Bartonella vinsonii subsp. berkhoffii (Bvb) and B. clarridgeiae (Bc) were detected using an immuno-fluorescence antibody test. Sixty-eight (25.8{\%}) and 73 (27.7{\%}) foxes were positive for Bvb and Bc, respectively. Seroprevalence was the highest on Santa Cruz Island (n = 36, Bvb = 80.5{\%}; Bc = 86.1{\%}) and Santa Rosa Island (n = 38, Bvb = 52.6{\%}; Bc = 65.8{\%}). On San Miguel and San Clemente Islands, seroprevalence for Bvb was 20{\%} and 17.3{\%} respectively, and 0{\%} and 21.3{\%} for Bc. Prevalence ranged between 0{\%} and 5.1{\%} on San Nicolas and Santa Catalina Islands. Foxes from Santa Rosa and Santa Cruz Islands were 17.5 times and 31.5 times as likely to be seropositive for Bvb and Bc than foxes from the other islands (95{\%} confidence interval [95{\%} CI] = 8.5, 36.7; 14.4, 70.2). There were no statistically significant differences for presence of Bartonella antibodies by sex, age, origin (captive vs. wild) or year of blood collection. This is the first report of exposure to Bartonella in the island fox population. Further studies are necessary to isolate these bacteria from foxes and determine factors associated with presence or absence of Bartonella species on specific islands.",
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