Explain how vaccination provides immunity as an important part of programmes to control and eradicate infectious diseases?
11 immunised person cannot spread disease to others ;
12 herd immunity / unimmunised people are safe(r) ;
13 surveillance of population for signs of disease / when there is an outbreak ;
14 ref. to ring immunity
do not understand these points esp. herd and ring immunity points......can anyone explain me these points
11 immunised person cannot spread disease to others ;
12 herd immunity / unimmunised people are safe(r) ;
13 surveillance of population for signs of disease / when there is an outbreak ;
14 ref. to ring immunity
do not understand these points esp. herd and ring immunity points......can anyone explain me these points