Children will not require any additional documents that their adult counterparts would not require.
Although Zambia doesn’t quarantine any healthy pets, the process necessary for importing pets is a little bit complicated and several documents are required:
A permit obtained from the Departure of Research and Specialist Services
A Veterinary Certificate for Zambia declaring your pet to be healthy and free of disease, signed by your veterinarian
Your cat or dog must be vaccinated for rabies no less than 30 days and no more than 12 months before entry
A microchip is not required but is strongly advised