Risks of cattle babesiosis (Babesia bovis) outbreaks in a semi-arid region of Argentina
The epidemiology of Babesia bovis was studied in terms of enzootic stability/instability and husbandry and abiotic factors influencing B. bovis transmission rate in northeastern Santiago del Estero province, Argentina. The area is of limited suitability for its only vector in Argentina, the tick Rhi...
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| Veröffentlicht in: | Preventive veterinary medicine 2019-10, Vol.170, p.104747-104747, Article 104747 |
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| creator | Morel, Nicolás Mastropaolo, Mariano de Echaide, Susana Torioni Signorini, Marcelo L. Mangold, Atilio J. |
| description | The epidemiology of Babesia bovis was studied in terms of enzootic stability/instability and husbandry and abiotic factors influencing B. bovis transmission rate in northeastern Santiago del Estero province, Argentina. The area is of limited suitability for its only vector in Argentina, the tick Rhipicephalus microplus. The proportion of calf herds in a state of enzootic stability/instability to B. bovis was determined and husbandry practices and abiotic factors associated with variations in B. bovis transmission rates were explored using a cross-sectional observational study design. Daily probability of infection (inoculation rate, h) with B. bovis was calculated from age-specific seroprevalence via ELISAi in 58 herds of 4.5–8.5-month-old calves. Herds were considered to be in enzootic instability (EI) when h |
| doi_str_mv | 10.1016/j.prevetmed.2019.104747 |
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The area is of limited suitability for its only vector in Argentina, the tick Rhipicephalus microplus. The proportion of calf herds in a state of enzootic stability/instability to B. bovis was determined and husbandry practices and abiotic factors associated with variations in B. bovis transmission rates were explored using a cross-sectional observational study design. Daily probability of infection (inoculation rate, h) with B. bovis was calculated from age-specific seroprevalence via ELISAi in 58 herds of 4.5–8.5-month-old calves. Herds were considered to be in enzootic instability (EI) when h < 0.005, and therefore inferred to be at risk of babesiosis outbreaks. Husbandry practices associated with differences in B. bovis transmission were analyzed using generalized linear models. Sixty-two percent of herds were found to be in an EI situation for B. bovis. Calves raised exclusively on permanent pastures –where higher cattle density is achieved– were exposed to higher B. bovis inoculation rates (h = 0.0063, 95% CI 0.0032-0.0123) than those reared under forage combinations (h = 0.0024, 95% CI 0.0011-0.0051) (P = 0.05). In addition, calves from herds located in the area of intermediate suitability for R. microplus development were more likely to become infected with B. bovis (h = 0.0067, 95% CI 0.0037-0.0121) than those reared in the ecologically unfavorable area for the vector (h = 0.0023, 95% CI 0.0010-0.0049) (P = 0.02). Neither the frequency of treatment with acaricides nor the use of long-acting acaricides to control R. microplus influenced the inoculation rate (P = 0.99 and P = 0.26, respectively). This result indicates that current R. microplus control schemes are not effective in reducing B. bovis transmission. Enzootic instability still prevails in the study area despite the drastic changes occurred in cattle production system. However, 38% of herds did reach enzootic stability; therefore, a specific epidemiological status cannot be assumed at a regional level. Yearly determination of the immunological status of each calf cohort is considered a proper approach to decision-making in vaccination against B. bovis.</description><identifier>ISSN: 0167-5877</identifier><identifier>EISSN: 1873-1716</identifier><identifier>DOI: 10.1016/j.prevetmed.2019.104747</identifier><identifier>PMID: 31442710</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>Animal Distribution ; Animal Husbandry - methods ; Animals ; Arachnid Vectors - physiology ; Argentina - epidemiology ; Babesia bovis - physiology ; Babesiosis ; Babesiosis - epidemiology ; Babesiosis - parasitology ; Cattle ; Cattle density ; Cattle Diseases - epidemiology ; Cattle Diseases - parasitology ; Disease Outbreaks - veterinary ; Environment ; Enzootic stability ; Enzyme-Linked Immunosorbent Assay - veterinary ; Female ; Prevalence ; Rhipicephalus - physiology ; Risk Assessment ; Seroepidemiologic Studies</subject><ispartof>Preventive veterinary medicine, 2019-10, Vol.170, p.104747-104747, Article 104747</ispartof><rights>2019 Elsevier B.V.</rights><rights>Copyright © 2019 Elsevier B.V. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c371t-bbdd1fe9e576850a330c83b970fa3fde9e7c48f0614853e8ea8fa2b4d9dfee603</citedby><cites>FETCH-LOGICAL-c371t-bbdd1fe9e576850a330c83b970fa3fde9e7c48f0614853e8ea8fa2b4d9dfee603</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.prevetmed.2019.104747$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,45974</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31442710$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Morel, Nicolás</creatorcontrib><creatorcontrib>Mastropaolo, Mariano</creatorcontrib><creatorcontrib>de Echaide, Susana Torioni</creatorcontrib><creatorcontrib>Signorini, Marcelo L.</creatorcontrib><creatorcontrib>Mangold, Atilio J.</creatorcontrib><title>Risks of cattle babesiosis (Babesia bovis) outbreaks in a semi-arid region of Argentina</title><title>Preventive veterinary medicine</title><addtitle>Prev Vet Med</addtitle><description>The epidemiology of Babesia bovis was studied in terms of enzootic stability/instability and husbandry and abiotic factors influencing B. bovis transmission rate in northeastern Santiago del Estero province, Argentina. The area is of limited suitability for its only vector in Argentina, the tick Rhipicephalus microplus. The proportion of calf herds in a state of enzootic stability/instability to B. bovis was determined and husbandry practices and abiotic factors associated with variations in B. bovis transmission rates were explored using a cross-sectional observational study design. Daily probability of infection (inoculation rate, h) with B. bovis was calculated from age-specific seroprevalence via ELISAi in 58 herds of 4.5–8.5-month-old calves. Herds were considered to be in enzootic instability (EI) when h < 0.005, and therefore inferred to be at risk of babesiosis outbreaks. Husbandry practices associated with differences in B. bovis transmission were analyzed using generalized linear models. Sixty-two percent of herds were found to be in an EI situation for B. bovis. Calves raised exclusively on permanent pastures –where higher cattle density is achieved– were exposed to higher B. bovis inoculation rates (h = 0.0063, 95% CI 0.0032-0.0123) than those reared under forage combinations (h = 0.0024, 95% CI 0.0011-0.0051) (P = 0.05). In addition, calves from herds located in the area of intermediate suitability for R. microplus development were more likely to become infected with B. bovis (h = 0.0067, 95% CI 0.0037-0.0121) than those reared in the ecologically unfavorable area for the vector (h = 0.0023, 95% CI 0.0010-0.0049) (P = 0.02). Neither the frequency of treatment with acaricides nor the use of long-acting acaricides to control R. microplus influenced the inoculation rate (P = 0.99 and P = 0.26, respectively). This result indicates that current R. microplus control schemes are not effective in reducing B. bovis transmission. Enzootic instability still prevails in the study area despite the drastic changes occurred in cattle production system. However, 38% of herds did reach enzootic stability; therefore, a specific epidemiological status cannot be assumed at a regional level. Yearly determination of the immunological status of each calf cohort is considered a proper approach to decision-making in vaccination against B. bovis.</description><subject>Animal Distribution</subject><subject>Animal Husbandry - methods</subject><subject>Animals</subject><subject>Arachnid Vectors - physiology</subject><subject>Argentina - epidemiology</subject><subject>Babesia bovis - physiology</subject><subject>Babesiosis</subject><subject>Babesiosis - epidemiology</subject><subject>Babesiosis - parasitology</subject><subject>Cattle</subject><subject>Cattle density</subject><subject>Cattle Diseases - epidemiology</subject><subject>Cattle Diseases - parasitology</subject><subject>Disease Outbreaks - veterinary</subject><subject>Environment</subject><subject>Enzootic stability</subject><subject>Enzyme-Linked Immunosorbent Assay - veterinary</subject><subject>Female</subject><subject>Prevalence</subject><subject>Rhipicephalus - physiology</subject><subject>Risk Assessment</subject><subject>Seroepidemiologic Studies</subject><issn>0167-5877</issn><issn>1873-1716</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkMlOwzAQQC0EomX5BfARDil2nMTOsVRsEhISAnG0vIyRSxsXO6nE3-NSypWTR54320PonJIJJbS5mk9WEdbQL8FOSkLb_Fvxiu-hMRWcFZTTZh-NM8mLWnA-QkcpzQkhTSPqQzRitKpKTskYvT379JFwcNiovl8A1kpD8iH5hC-uf2KFdVj7dInD0OsIKuO-wwonWPpCRW9xhHcfuk2TaXyHrvedOkEHTi0SnP6-x-j19uZldl88Pt09zKaPhWGc9oXW1lIHLdQ8b0YUY8QIpltOnGLO5gQ3lXCkoZWoGQhQwqlSV7a1DqAh7BhdbPuuYvgcIPVy6ZOBxUJ1EIYky1JQSuqWNBnlW9TEkFIEJ1fRL1X8kpTIjVU5l39W5caq3FrNlWe_Qwa9ye3qdhozMN0CkE9de4gyGQ-dAesjmF7a4P8d8g0aNo2L</recordid><startdate>20191001</startdate><enddate>20191001</enddate><creator>Morel, Nicolás</creator><creator>Mastropaolo, Mariano</creator><creator>de Echaide, Susana Torioni</creator><creator>Signorini, Marcelo L.</creator><creator>Mangold, Atilio J.</creator><general>Elsevier B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20191001</creationdate><title>Risks of cattle babesiosis (Babesia bovis) outbreaks in a semi-arid region of Argentina</title><author>Morel, Nicolás ; Mastropaolo, Mariano ; de Echaide, Susana Torioni ; Signorini, Marcelo L. ; Mangold, Atilio J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c371t-bbdd1fe9e576850a330c83b970fa3fde9e7c48f0614853e8ea8fa2b4d9dfee603</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Animal Distribution</topic><topic>Animal Husbandry - methods</topic><topic>Animals</topic><topic>Arachnid Vectors - physiology</topic><topic>Argentina - epidemiology</topic><topic>Babesia bovis - physiology</topic><topic>Babesiosis</topic><topic>Babesiosis - epidemiology</topic><topic>Babesiosis - parasitology</topic><topic>Cattle</topic><topic>Cattle density</topic><topic>Cattle Diseases - epidemiology</topic><topic>Cattle Diseases - parasitology</topic><topic>Disease Outbreaks - veterinary</topic><topic>Environment</topic><topic>Enzootic stability</topic><topic>Enzyme-Linked Immunosorbent Assay - veterinary</topic><topic>Female</topic><topic>Prevalence</topic><topic>Rhipicephalus - physiology</topic><topic>Risk Assessment</topic><topic>Seroepidemiologic Studies</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Morel, Nicolás</creatorcontrib><creatorcontrib>Mastropaolo, Mariano</creatorcontrib><creatorcontrib>de Echaide, Susana Torioni</creatorcontrib><creatorcontrib>Signorini, Marcelo L.</creatorcontrib><creatorcontrib>Mangold, Atilio J.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Preventive veterinary medicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Morel, Nicolás</au><au>Mastropaolo, Mariano</au><au>de Echaide, Susana Torioni</au><au>Signorini, Marcelo L.</au><au>Mangold, Atilio J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Risks of cattle babesiosis (Babesia bovis) outbreaks in a semi-arid region of Argentina</atitle><jtitle>Preventive veterinary medicine</jtitle><addtitle>Prev Vet Med</addtitle><date>2019-10-01</date><risdate>2019</risdate><volume>170</volume><spage>104747</spage><epage>104747</epage><pages>104747-104747</pages><artnum>104747</artnum><issn>0167-5877</issn><eissn>1873-1716</eissn><abstract>The epidemiology of Babesia bovis was studied in terms of enzootic stability/instability and husbandry and abiotic factors influencing B. bovis transmission rate in northeastern Santiago del Estero province, Argentina. The area is of limited suitability for its only vector in Argentina, the tick Rhipicephalus microplus. The proportion of calf herds in a state of enzootic stability/instability to B. bovis was determined and husbandry practices and abiotic factors associated with variations in B. bovis transmission rates were explored using a cross-sectional observational study design. Daily probability of infection (inoculation rate, h) with B. bovis was calculated from age-specific seroprevalence via ELISAi in 58 herds of 4.5–8.5-month-old calves. Herds were considered to be in enzootic instability (EI) when h < 0.005, and therefore inferred to be at risk of babesiosis outbreaks. Husbandry practices associated with differences in B. bovis transmission were analyzed using generalized linear models. Sixty-two percent of herds were found to be in an EI situation for B. bovis. Calves raised exclusively on permanent pastures –where higher cattle density is achieved– were exposed to higher B. bovis inoculation rates (h = 0.0063, 95% CI 0.0032-0.0123) than those reared under forage combinations (h = 0.0024, 95% CI 0.0011-0.0051) (P = 0.05). In addition, calves from herds located in the area of intermediate suitability for R. microplus development were more likely to become infected with B. bovis (h = 0.0067, 95% CI 0.0037-0.0121) than those reared in the ecologically unfavorable area for the vector (h = 0.0023, 95% CI 0.0010-0.0049) (P = 0.02). Neither the frequency of treatment with acaricides nor the use of long-acting acaricides to control R. microplus influenced the inoculation rate (P = 0.99 and P = 0.26, respectively). This result indicates that current R. microplus control schemes are not effective in reducing B. bovis transmission. Enzootic instability still prevails in the study area despite the drastic changes occurred in cattle production system. However, 38% of herds did reach enzootic stability; therefore, a specific epidemiological status cannot be assumed at a regional level. Yearly determination of the immunological status of each calf cohort is considered a proper approach to decision-making in vaccination against B. bovis.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>31442710</pmid><doi>10.1016/j.prevetmed.2019.104747</doi><tpages>1</tpages></addata></record> |
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| ispartof | Preventive veterinary medicine, 2019-10, Vol.170, p.104747-104747, Article 104747 |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Animal Distribution Animal Husbandry - methods Animals Arachnid Vectors - physiology Argentina - epidemiology Babesia bovis - physiology Babesiosis Babesiosis - epidemiology Babesiosis - parasitology Cattle Cattle density Cattle Diseases - epidemiology Cattle Diseases - parasitology Disease Outbreaks - veterinary Environment Enzootic stability Enzyme-Linked Immunosorbent Assay - veterinary Female Prevalence Rhipicephalus - physiology Risk Assessment Seroepidemiologic Studies |
| title | Risks of cattle babesiosis (Babesia bovis) outbreaks in a semi-arid region of Argentina |
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