Which of the following is NOT used to treat active viral disease?

Vaccines

Antiviral drugs

Antibiotics

Phage therapy

The answer is Antibiotics.

Explanation:

Antibiotics are never used in the treatment of an active viral disease. Infections caused by viruses such as common cold, viral bronchitis, measles, chicken pox, among others, trying to treat them with antibiotics are causing harm to the patient instead of a benefit, since they can make the body bacteria become resistant to it and can no longer be used.