The majority of vaccines work by eliciting pathogen-specific antibodies that circulate in our bodies and protect us in the event
that we are later exposed to that specific pathogen. For most viruses and bacterial toxins that we are vaccinated against, these pre-existing antibodies are protective because:
Vaccines are penetrations into the body system that helps improve the immune system against specific diseases.
The vaccines act by imitating the disease causing organism i.e they resemble the disease causing organism this is because they have been made form strains of the weak or dead disease organism.
The body system is made to identify this toxins or disease organism as something strange that needs to be remove anytime it reoccurs in the cell when the vaccines are taken. Although the body sees vaccine as something harmful they do not actually cause the disease but are pointers to the disease causing organism.
light and heat are given off as a result of converting the input energy which i would guess is electrical energy or in case of gas or oil its chemical energy if it help pick as best :)
