Changes

==Which type of vaccine is used for each disease?==

==Which type of vaccine is used for each disease?==

*The life-cycle of the organisms needs to be understood to ascertain the best type of immune reponse for fighting the particular infection

*The life-cycle of the organisms needs to be understood to ascertain the best type of immune response for fighting the particular infection

*A vaccine can be created to provide specific immunity which is best suited for fighting the specific infection

*A vaccine can be created to provide specific immunity which is best suited for fighting the specific infection

===Immunity to Virus Infection===

===Immunity to Virus Infection===

*The virus life cycle consists of an extracellular phase, a replicative intracellular phase and another extracellular phase spreading virual particles to other cells to begin the life cycle again

*The virus life cycle consists of an extracellular phase, a replicative intracellular phase and another extracellular phase spreading viral particles to other cells to begin the life cycle again

*Immunity for the extracellular phase requires neutralising '''antibody'''

*Immunity for the extracellular phase requires neutralising '''antibody'''