Social & Preventive Medicine The validity period of &;valid ceificate of yellow fever vaccination&; is – A 10 days after date of vaccination up to 7 years B 10 days after date of vaccination up to 7 years C 10 days after date of vaccination up to 10 years D 7 days after date of vaccination up to 7 years 💡 Explanation The validity period of &;valid ceificate of yellow fever vaccination&; is - ✓ Correct Answer: C. 10 days after date of vaccination up to 10 years