bioloogiline preparaat, mille abil aktiveeritakse organismi spetsiifiline immuunvastus
A vaccine is a biological preparation that provides active acquired immunity to a particular disease. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins or one of its surface proteins.
Hea teada
Vaktsiinid sisaldavad immuunreaktsioone indutseerivaid antigeene või madala virulentsusega elusaid mikroorganisme (elusvaktsiinid).