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Fig. 3 | BMC Veterinary Research

Fig. 3

From: Efficacy of live attenuated porcine reproductive and respiratory syndrome virus 2 strains to protect pigs from challenge with a heterologous Vietnamese PRRSV 2 field strain

Fig. 3

Multiple alignment (a), neighbour joining tree (b) and nucleotide sequence identity matrix (c). Graphical view for selected references, sequenced samples of the study piglets, the challenge virus and the tested PRRSV 2 live vaccine. Reference strains: Lelystad virus for PRRSV 1, INGELVAC pMLV and VR2332 for PRRSV 2. The size of the alignment was 1201 bp. Numbers along the branches in (b) show the bootstrap values (%) after 1000 bootstrap iterations

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