Question

vaccine immunity, pan/epidemics and herd immunity 4.1.1(l)

Accepted Answer

vaccine gives long term immunity and prevents epidemics (when disease spreads rapidly at local/national level), pandemic is when same disease spreads rapidly accross number of countries, vaccination prevents disease spreading into wider pop, when sig number of people in pop vaccinated, protection given to those without immunity (herd immunity)

Front	vaccine immunity, pan/epidemics and herd immunity 4.1.1(l)
Back	vaccine gives long term immunity and prevents epidemics (when disease spreads rapidly at local/national level), pandemic is when same disease spreads rapidly accross number of countries, vaccination prevents disease spreading into wider pop, when sig number of people in pop vaccinated, protection given to those without immunity (herd immunity)

Immunity Disease Vaccine Prevents Spreads Rapidly Number Pan/Epidemics