The institute has urged citizens who develop symptoms of respiratory illness, including cough, fever and shortness of breath, during and after travel to affected countries to seek medical care early and to share information about their travel history with health-care providers.
COVID-19 has claimed 2,663 lives in China, with more than 77,000 infections reported.
Outside China, South Korea has recorded the most infections, with almost 1,000 cases reported.
Only one African nation, Egypt, has had a confirmed case, but South Africa has been identified as one of three countries on the continent at greatest risk of importing the virus.
• The general public hotline number is 0800 029 999 and operates Monday to Friday between 8am-4pm.
— Additional reporting by AFP