Baxi et al. [211] developed a microarray-based test that used a FMD DNA chip containing 155 oligonucleotide probes, 35-45 base pairs (bp) long, and serotype-specific, designed from the VP3,VPl-2A region of the genome. A set of two forward primers and one reverse primer were also designed to allow amplification of approximately 1100 bp of target sequences from this region. The amplified target was labelled with Alexa-Fluor 546 dye and applied to the FMD DNA chip. A total of 23 different FMDV strains representing all seven serotypes were detected and typed by the FMD DNA chip. Microarray technology offers a unique capability to identify multiple pathogens in a single chip [211] .