51. Certificates of unfitness

If any medical practitioner is of the opinion that any person is not fit to be vaccinated, he shall forthwith deliver to that person or, in the case of a child, to the parent or guardian of the child an exemption certificate in such form as the Director-General may require.

Such exemption certificate shall remain in force for such period as may be specified therein.

Before the expiry of the exemption certificate, the person shall go, or the parent or guardian of the child shall take or cause the child to be taken, to a medical practitioner who shall then examine and vaccinate the person or child or give a further exemption certificate in respect of that person or child in such form as the Director-General may require.

Any medical practitioner who issues an exemption certificate under this section shall, within such time and in such form or manner as the