Can you get a virus using Linux? Should Ubuntu users consider installing an antivirus program? It turns out that there are Linux viruses. [1]
Linux is very well protected and is safer than Windows, but it is also susceptible to malware. This is to be considered.
Linux malware includes viruses, trojans, worms and other types of malware that affect the Linux operating system. Linux, Unix and other Unix-like computer operating systems are generally regarded as very well-protected against, but not immune to, computer viruses. [2]
Many experts say that antivirus isn’t necessary with Ubuntu. One user has recommended Avira. [3]
Sources:
1. Is there a point in installing antivirus on Ubuntu? — superuser
2. Linux malware — Wikipedia
3. Simplicity meets complete online security — Avira