Therefore, if a pig becomes infected by both types of viruses ​ — one sort that infects animals and another sort common to humans — ​ the genes of the two strains can get mixed together.
Jadi, jika seekor babi terinfeksi kedua jenis virus ​ — virus yang menginfeksi binatang dan virus yang menginfeksi manusia ​ — gen - gen kedua jenis virus itu dapat bercampur.