2005
DOI: 10.1590/s1517-83822005000100010
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Comparison of serological methods for the diagnostic of Caprine arthritis-encephalitis (CAE) in Rio de Janeiro, Brazil

Abstract: Serum samples of 562 goats were tested for Caprine arthritis-encephalitis using agar gel immunodiffusion test (AGID) and enzyme linked immunosorbent assay (ELISA). Seventy-nine samples (14.1%) were reactive by both testes but 141 (25.1%) were reactive only by ELISA. ELISA, when compared to AGID, presented 100% sensitivity and 70.8% specificity.

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Cited by 5 publications
(8 citation statements)
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“…Despite the high relative sensitivity (97%) and relative specificity (100%) obtained when comparing SRLV detection in milk to serum using the IDscreen ® ELISA, it is important to keep in mind that there is no gold standard diagnostic method for SRLV [3,18], and that 100% relative specificity does not mean that no false positive results can occur. Serological tools may suffer imperfect sensitivity that may be related to the heterogeneity of circulating strains, delayed seroconversion and fluctuating antibody responses [2,6,16,41,42]. Besides issues with imperfect sensitivity, also false positive reactions are sometimes observed which mostly cannot be explained [43].…”
Section: Discussionmentioning
confidence: 99%
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“…Despite the high relative sensitivity (97%) and relative specificity (100%) obtained when comparing SRLV detection in milk to serum using the IDscreen ® ELISA, it is important to keep in mind that there is no gold standard diagnostic method for SRLV [3,18], and that 100% relative specificity does not mean that no false positive results can occur. Serological tools may suffer imperfect sensitivity that may be related to the heterogeneity of circulating strains, delayed seroconversion and fluctuating antibody responses [2,6,16,41,42]. Besides issues with imperfect sensitivity, also false positive reactions are sometimes observed which mostly cannot be explained [43].…”
Section: Discussionmentioning
confidence: 99%
“…This makes it a fact that AGID is usually used to confirm ELISA results [2]. All serological tests suffer from imperfect sensitivity that may be due to the heterogeneity of circulating strains, delayed seroconversion and fluctuating antibody responses [2,6,16]. Besides the serological tests, molecular assays were developed to enable the detection of viral nucleic acids.…”
Section: Introductionmentioning
confidence: 99%
“…O teste eleito para identificação dos animais acometidos pelo vírus da AEC no presente estudo foi a imunodifusão em gel de ágar, o teste mais utilizado para detectar anticorpos anti-VAEC (LARA et al, 2003;CORTEZ-MOREIRA et al, 2005). Técnica preconizada pelo Escritório Internacional de Epizootias (OIE), para triagem e trânsito de animais, e pelo Código Internacional de Saúde Animal ("International Animal Health Code"), para importação e exportação dos animais, apresenta 100% de especificidade (ANDRÉS et al, 2005;CORTEZ-MOREIRA et al, 2005), entretanto, a sensibilidade deste teste é controversa, pois, há relatos na literatura de 70 % a 91% (ANDRÉS et al, 2005, BRINKHOF;VAN MAANEN, 2007).…”
Section: Triagem E Formação Dos Grupos Experimentaisunclassified
“…Comparando-se a sensibilidade da IDGA ao teste ELISA, o segundo tem demonstrado maior sensibilidade que o primeiro, principalmente, nos casos de animais que apresentavam soroconversão tardia, todavia, o IDGA, pela sua especificidade, não aponta para resultados falso-positivos como o teste ELISA (ANDRÉS et al, 2005;CORTEZ-MOREIRA et al, 2005;VAN MAANEN, 2007). RUTKOSKI et al, 2001).…”
Section: Triagem E Formação Dos Grupos Experimentaisunclassified
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