a substance used to stimulate immunity to a particular infectious disease or pathogen, typically prepared from an inactivated or weakened form of the causative agent or from its constituents or products

every year the flu vaccine is modified to deal with new strains of the virus

we are working right now to develop a new vaccine

vials of vaccine in insulated cartons

a program designed to detect computer viruses and inactivate them

the rate of use of vaccines for computer viruses is not as high as in the US, Japan, and other countries