In February last year, the World Health Organisation said people with mild cases of COVID-19 usually recover within two weeks.
Now, over a year later, data shows one in ten continue to experience poor health for months after they first become infected.
It's a phenomenon health experts are calling 'long COVID', and it's being reported in harder-hit countries such as the United Kingdom and United States, as more evidence emerges.
Several health experts are warning the long-term impacts of the disease could become an extra burden on the country's health system.
