China has become adept at coercive measures that many nations consider over-the-top since the deadly 2003 SARS outbreak. This time, patients are being forced to stay in hospital in Foshan for a minimum of one week and authorities briefly enforced a two-week home quarantine, which was dropped since the disease cannot be transmitted between people.

Here is the everything the World Health Organization has said about Chikungunya virus, as China introduces 'pandemic measures' after outbreak.

The mosquito-borne chikungunya is rare in China, but the CDC urges caution and Chinese officials have taken steps compared to its COVID-19 response.