AIM: To develop a TaqMan probe-based, highly sensitive and specific quantitative PCR (qPCR) assay for the detection and quantification of Mycoplasma suis in the blood of pigs. METHODS AND RESULTS: Primers and probes specific to Myc. suis 16S rRNA gene were designed. The qPCR assay's specificity, detection limit, intra- and inter-assay variability were evaluated and its performance was compared with a Myc. suis conventional PCR assay (cPCR). Blood of two experimentally infected pigs, 40 Indiana pigs, 40 Brazilian sows and 28 peccaries were tested. The assay detected as few as ten copies of Myc. suis plasmids and was 100-fold more sensitive than the cPCR. No cross-reactivity with nontarget pig mycoplasmas was observed. An average of 1·62 × 10(11) and 2·75 × 10(8) target copies ml(-1) of blood were detected in the acutely and chronically infected pigs, respectively. Three (7·5%) pigs and 32 (80·0%) sows were positive while all peccaries were negative for Myc. suis. CONCLUSION: The developed qPCR assay is highly sensitive and specific for Myc. suis detection and quantification. SIGNIFICANCE AND IMPACT OF THE STUDY: TaqMan qPCR is an accurate and quick test for detection of Myc. suis infected pigs, which can be used on varied instrumentation platforms.
AIM: To develop a TaqMan probe-based, highly sensitive and specific quantitative PCR (qPCR) assay for the detection and quantification of Mycoplasma suis in the blood of pigs. METHODS AND RESULTS: Primers and probes specific to Myc. suis 16S rRNA gene were designed. The qPCR assay's specificity, detection limit, intra- and inter-assay variability were evaluated and its performance was compared with a Myc. suis conventional PCR assay (cPCR). Blood of two experimentally infected pigs, 40 Indiana pigs, 40 Brazilian sows and 28 peccaries were tested. The assay detected as few as ten copies of Myc. suis plasmids and was 100-fold more sensitive than the cPCR. No cross-reactivity with nontarget pigmycoplasmas was observed. An average of 1·62 × 10(11) and 2·75 × 10(8) target copies ml(-1) of blood were detected in the acutely and chronically infected pigs, respectively. Three (7·5%) pigs and 32 (80·0%) sows were positive while all peccaries were negative for Myc. suis. CONCLUSION: The developed qPCR assay is highly sensitive and specific for Myc. suis detection and quantification. SIGNIFICANCE AND IMPACT OF THE STUDY: TaqMan qPCR is an accurate and quick test for detection of Myc. suis infected pigs, which can be used on varied instrumentation platforms.
Authors: Naíla C do Nascimento; Andrea P dos Santos; Yuefeng Chu; Ana M S Guimaraes; Aubrey N Baird; Ann B Weil; Joanne B Messick Journal: Vet Res Date: 2014-08-13 Impact factor: 3.683
Authors: Naíla C do Nascimento; Ana M S Guimaraes; Andrea P Dos Santos; Yuefeng Chu; Lucas M Marques; Joanne B Messick Journal: Vet Res Date: 2018-06-18 Impact factor: 3.683
Authors: Julia Ade; Julia Stadler; Mathias Ritzmann; Christina Zübert; Katharina Hoelzle; Ludwig E Hoelzle Journal: BMC Vet Res Date: 2022-01-17 Impact factor: 2.741
Authors: Sándor Hornok; László Sugár; Isabel G Fernández de Mera; José de la Fuente; Gábor Horváth; Tibor Kovács; Attila Micsutka; Enikő Gönczi; Barbara Flaisz; Nóra Takács; Róbert Farkas; Marina L Meli; Regina Hofmann-Lehmann Journal: BMC Vet Res Date: 2018-03-20 Impact factor: 2.741