As of Friday the 12th of March, Sarawak, with the fourth biggest population in the country, has inoculated about 1% of its residents. Sarawak has administered 28,194 first doses, the most in the country. What accounts for their success and what challenges lie ahead from vaccine supply, hesitancy, logistics and monitoring? Melisa Idris and Sharaad Kuttan speak to Dr Chin Zin Hing, Director of Sarawak Health Department.