"Can you think of any reason why Adams would want to develop a virus harmful against either Vulcans or Romulans?"

Learn more about how this harmful virus is transmitted and what measures you can take to protect yourself and your family against it.

The more harmful viruses are described as virulent.

Contrary to common belief, harmful viruses may be in the minority compared to benign viruses in the human body.

Over the last five years, there have been about 150 writers of major harmful viruses, Dr. Tippett said.

The other products are made from screened blood or plasma and undergo purification that destroys any harmful viruses or bacteria.

A compliant virus scanner, when detecting the file, will respond in exactly the same manner as if it found a harmful virus.

Your computer continues to be infected with harmful viruses.

Genetically engineered crops can also benefit farmers when dealing with potentially harmful viruses and bacteria.

It is believed that HIV arose from another, less harmful virus, that mutated and became more virulent.