vaccine manufacturers are required to declare the ingredients to the south african health products regulatory authority (sahpra) before the vaccine is approved for use.

abavelisi bama chiza okugonya kufuneka bachaze izithako kwigunya bantu elilawula iimveliso zezempilo lomzantsi afrika (isahpra) phambi kokuba ichiza lokugonya liphunye zwe ukuba lingasetyenziswa.
