Currently, all vaccines on the market today only exist for diseases caused by viruses- though not all diseases caused by viruses have a corresponding vaccine. Notably, the common cold (rhinoviruses) and AIDS (HIV) have no vaccines.
vaccines are useful to protect from diseases to human bodies
Vaccines don't kill viruses or diseases; they prevent disease before you are infected.
Vaccines prevent diseases, medications treat them.
Yes, there are vaccines which can protect against bacterial diseases for instance the tetanus vaxine is one of these.
they don't protect against all viral diseases because unfortunately some diseases have an immunity to vaccines
Prevention of infectious diseases when vaccines are available for them. There are vaccines available for many viral and some bacterial contagious diseases.
Vaccines prevent so many diseases like t.b, herpese, hapetitis b, hiv, stds and so much more.