Demographic characteristics and infectious diseases of a population of American black bears in Humboldt County, California

Nicole Stephenson, J. Mark Higley, Jaime L. Sajecki, Bruno B Chomel, Richard N. Brown, Janet E Foley

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

American black bears (Ursus americanus) are common, widely distributed, and broad-ranging omnivorous mammals in northern California forests. Bears may be susceptible to pathogens infecting both domestic animals and humans. Monitoring bear populations, particularly in changing ecosystems, is important to understanding ecological features that could affect bear population health and influence the likelihood that bears may cause adverse impacts on humans. In all, 321 bears were captured between May, 2001, and October, 2003, and blood samples were collected and tested for multiple zoonotic and vector-borne diseases. We found a PCR prevalence of 10% for Anaplasma phagocytophilum, and a seroprevalence of 28% for Toxoplasma gondii, 26% for Borrelia burgdorferi, 26% for A. phagocytophilum, 8% for Trichinella spiralis, 8% for Francisella tularensis and 1% for Yersinia pestis. In addition, we tested bears for pathogens of domestic dogs and found a seroprevalence of 15% for canine distemper virus and 0.6% for canine parvovirus. Our findings show that black bears can become infected with pathogens that are an important public health concern, as well as pathogens that can affect both domestic animals and other wildlife species.

Original languageEnglish (US)
Pages (from-to)116-123
Number of pages8
JournalVector-Borne and Zoonotic Diseases
Volume15
Issue number2
DOIs
StatePublished - Feb 1 2015

Fingerprint

Ursidae
Communicable Diseases
Demography
Anaplasma phagocytophilum
Domestic Animals
Seroepidemiologic Studies
Population
Canine Parvovirus
Canine Distemper Virus
Francisella tularensis
Trichinella spiralis
Yersinia pestis
Disease Vectors
Borrelia burgdorferi
Toxoplasma
Zoonoses
Ecosystem
Mammals
Public Health
Dogs

Keywords

  • Anaplasmosis
  • Borreliosis
  • Canine distemper virus
  • Parvovirus
  • Plague
  • Tick-borne disease
  • Tularemia

ASJC Scopus subject areas

  • Infectious Diseases
  • Microbiology
  • Virology

Cite this

Demographic characteristics and infectious diseases of a population of American black bears in Humboldt County, California. / Stephenson, Nicole; Higley, J. Mark; Sajecki, Jaime L.; Chomel, Bruno B; Brown, Richard N.; Foley, Janet E.

In: Vector-Borne and Zoonotic Diseases, Vol. 15, No. 2, 01.02.2015, p. 116-123.

Research output: Contribution to journalArticle

@article{60f484a77e6c4c90a24a478b5e338fb7,
title = "Demographic characteristics and infectious diseases of a population of American black bears in Humboldt County, California",
abstract = "American black bears (Ursus americanus) are common, widely distributed, and broad-ranging omnivorous mammals in northern California forests. Bears may be susceptible to pathogens infecting both domestic animals and humans. Monitoring bear populations, particularly in changing ecosystems, is important to understanding ecological features that could affect bear population health and influence the likelihood that bears may cause adverse impacts on humans. In all, 321 bears were captured between May, 2001, and October, 2003, and blood samples were collected and tested for multiple zoonotic and vector-borne diseases. We found a PCR prevalence of 10{\%} for Anaplasma phagocytophilum, and a seroprevalence of 28{\%} for Toxoplasma gondii, 26{\%} for Borrelia burgdorferi, 26{\%} for A. phagocytophilum, 8{\%} for Trichinella spiralis, 8{\%} for Francisella tularensis and 1{\%} for Yersinia pestis. In addition, we tested bears for pathogens of domestic dogs and found a seroprevalence of 15{\%} for canine distemper virus and 0.6{\%} for canine parvovirus. Our findings show that black bears can become infected with pathogens that are an important public health concern, as well as pathogens that can affect both domestic animals and other wildlife species.",
keywords = "Anaplasmosis, Borreliosis, Canine distemper virus, Parvovirus, Plague, Tick-borne disease, Tularemia",
author = "Nicole Stephenson and Higley, {J. Mark} and Sajecki, {Jaime L.} and Chomel, {Bruno B} and Brown, {Richard N.} and Foley, {Janet E}",
year = "2015",
month = "2",
day = "1",
doi = "10.1089/vbz.2014.1671",
language = "English (US)",
volume = "15",
pages = "116--123",
journal = "Vector-Borne and Zoonotic Diseases",
issn = "1530-3667",
publisher = "Mary Ann Liebert Inc.",
number = "2",

}

TY - JOUR

T1 - Demographic characteristics and infectious diseases of a population of American black bears in Humboldt County, California

AU - Stephenson, Nicole

AU - Higley, J. Mark

AU - Sajecki, Jaime L.

AU - Chomel, Bruno B

AU - Brown, Richard N.

AU - Foley, Janet E

PY - 2015/2/1

Y1 - 2015/2/1

N2 - American black bears (Ursus americanus) are common, widely distributed, and broad-ranging omnivorous mammals in northern California forests. Bears may be susceptible to pathogens infecting both domestic animals and humans. Monitoring bear populations, particularly in changing ecosystems, is important to understanding ecological features that could affect bear population health and influence the likelihood that bears may cause adverse impacts on humans. In all, 321 bears were captured between May, 2001, and October, 2003, and blood samples were collected and tested for multiple zoonotic and vector-borne diseases. We found a PCR prevalence of 10% for Anaplasma phagocytophilum, and a seroprevalence of 28% for Toxoplasma gondii, 26% for Borrelia burgdorferi, 26% for A. phagocytophilum, 8% for Trichinella spiralis, 8% for Francisella tularensis and 1% for Yersinia pestis. In addition, we tested bears for pathogens of domestic dogs and found a seroprevalence of 15% for canine distemper virus and 0.6% for canine parvovirus. Our findings show that black bears can become infected with pathogens that are an important public health concern, as well as pathogens that can affect both domestic animals and other wildlife species.

AB - American black bears (Ursus americanus) are common, widely distributed, and broad-ranging omnivorous mammals in northern California forests. Bears may be susceptible to pathogens infecting both domestic animals and humans. Monitoring bear populations, particularly in changing ecosystems, is important to understanding ecological features that could affect bear population health and influence the likelihood that bears may cause adverse impacts on humans. In all, 321 bears were captured between May, 2001, and October, 2003, and blood samples were collected and tested for multiple zoonotic and vector-borne diseases. We found a PCR prevalence of 10% for Anaplasma phagocytophilum, and a seroprevalence of 28% for Toxoplasma gondii, 26% for Borrelia burgdorferi, 26% for A. phagocytophilum, 8% for Trichinella spiralis, 8% for Francisella tularensis and 1% for Yersinia pestis. In addition, we tested bears for pathogens of domestic dogs and found a seroprevalence of 15% for canine distemper virus and 0.6% for canine parvovirus. Our findings show that black bears can become infected with pathogens that are an important public health concern, as well as pathogens that can affect both domestic animals and other wildlife species.

KW - Anaplasmosis

KW - Borreliosis

KW - Canine distemper virus

KW - Parvovirus

KW - Plague

KW - Tick-borne disease

KW - Tularemia

UR - http://www.scopus.com/inward/record.url?scp=84923525488&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84923525488&partnerID=8YFLogxK

U2 - 10.1089/vbz.2014.1671

DO - 10.1089/vbz.2014.1671

M3 - Article

C2 - 25700042

AN - SCOPUS:84923525488

VL - 15

SP - 116

EP - 123

JO - Vector-Borne and Zoonotic Diseases

JF - Vector-Borne and Zoonotic Diseases

SN - 1530-3667

IS - 2

ER -