Porcine cytomegalovirus detection by nanopore-based metagenomic sequencing in a Hungarian pig farm

The rapid diagnosis of infectious diseases has an essential impact on their control, treatment and recovery. Oxford Nanopore Technologies (ONT) sequencing opens up a new dimension in applying clinical metagenomics. In a large-scale pig farm in Hungary, four fattening and one piglet nasal swab pooled samples were sequenced using ONT for metagenomic analysis. Long reads covering 53.69% of the porcine cytomegalovirus genome were obtained in the piglet sample. The 650 bp long read matching the glycoprotein B gene of the virus is sequentially most similar to Japanese, Chinese and Spanish isolates.