{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,7]],"date-time":"2025-11-07T13:20:56Z","timestamp":1762521656981},"reference-count":36,"publisher":"FapUNIFESP (SciELO)","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Rev. Bras. Parasitol. Vet."],"published-print":{"date-parts":[[2013,12]]},"abstract":"<jats:p>Cattle ticks are responsible for great economic losses in cattle farming worldwide, and their main control method, chemicals, has been showing problems, whether resulting from the development of resistant strains of ticks or environmental contamination. Research studies directed toward developing vaccines against ticks are emerging. One way to evaluate those vaccines is to calculate the percentage of efficacy. The aim of this study was to analyze scientific publications archived in PubMed that used this method of assessment and discuss the main factors that may affect its calculation. Thus, 25 articles addressing this subject were selected. The percentage of efficacy was usually calculated in one of two ways, with one considering the reduced fertility of eggs and the other not. The latter method may underestimate the vaccine efficacy, and the most complete formula for calculating the efficacy reflects how much the vaccine actually affects the infestation. In our view, the use of the complete formula for calculating the percentage of efficacy is broader and more representative of the vaccine effect on the tick population.<\/jats:p>","DOI":"10.1590\/s1984-29612013000400019","type":"journal-article","created":{"date-parts":[[2014,2,25]],"date-time":"2014-02-25T13:41:59Z","timestamp":1393335719000},"page":"571-578","source":"Crossref","is-referenced-by-count":12,"title":["Calculation of the efficacy of vaccines against tick infestations on cattle"],"prefix":"10.1590","volume":"22","author":[{"given":"Rodrigo Casquero","family":"Cunha","sequence":"first","affiliation":[{"name":"Universidade Federal de Mato Grosso do Sul - UFMS,  Brasil"}]},{"given":"Renato","family":"Andreotti","sequence":"additional","affiliation":[{"name":"Empresa Brasileira de Pesquisa Agropecu\u00e1ria - EMBRAPA,  Brasil"}]},{"given":"Marcos Val\u00e9rio","family":"Garcia","sequence":"additional","affiliation":[{"name":"Empresa Brasileira de Pesquisa Agropecu\u00e1ria - EMBRAPA,  Brasil"}]},{"given":"Andr\u00e9 de Abreu Rangel","family":"Aguirre","sequence":"additional","affiliation":[{"name":"Universidade Federal de Mato Grosso do Sul - UFMS,  Brasil"}]},{"given":"Alexandre","family":"Leit\u00e3o","sequence":"additional","affiliation":[{"name":"Universidade T\u00e9cnica de Lisboa - UTL,  Portugal"}]}],"member":"530","reference":[{"issue":"(46-47)","key":"ref1","doi-asserted-by":"crossref","first-page":"5294","DOI":"10.1016\/j.vaccine.2005.08.004","article-title":"Vaccination with recombinant tick antigens for the control of Ixodes scapularis adult infestations","volume":"23","author":"Almaz\u00e1n C","year":"2005","journal-title":"Vaccine"},{"issue":"(2)","key":"ref2","doi-asserted-by":"crossref","first-page":"471","DOI":"10.1007\/s00436-009-1689-1","article-title":"Identification and characterization ofRhipicephalus (Boophilus) microplus candidate protective antigens for the control of cattle tick infestations","volume":"106","author":"Almaz\u00e1n 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