an·ti·vi·ral (ān'tē-vī'rəl, ān'tī-): Medication that is used to prevent or cure a disease caused by a virus. Antivirals are prescription medicines that can fight against many diseases, including the flu, small pox and tuberculosis. Although the flu vaccine is the first and most important step in preventing flu, antiviral drugs are a second line of protection against the flu. Antiviral drugs are not sold over-thecounter.You can only get them if you have a prescription from your doctor or health care provider.
con⋅ta⋅gious (kuhn-tey-juhs): Easily spread through touch or contact with people or objects (phones, faucets and doorknobs).
in⋅flu⋅en⋅za (in-floo-en-zuh): A respiratory illness that can be spread from person to person. Most people have some immunity and a vaccine is available. This is also known as the common flu or seasonal flu.
vac⋅cine (vak-seen): A shot given to prevent a disease and give protection against.