Coronaviruses are a family of viruses affecting animals and humans that cause widespread infectious diseases. Six types are currently known to cause infectious disease in humans, but apart from SARS-CoV (Severe acute respiratory syndrome) and MERS-CoV (Middle East Respiratory Syndrome, which both cause severe respiratory illness, most do not cause symptoms beyond that of a regular cold.
The novel coronavirus is not currently recognized as being prevalent in Japan. Please take basic disease-prevention measures, as you would for influenza, such as washing your hands thoroughly and observing cough etiquette.
Those who have come from Wuhan, or been in contact with someone who has, and have a cough or high fever are requested to wear a mask and visit a medical facility, after contacting the facility in advance. Furthermore, please inform the medical facility before you visit that you have spent time in Wuhan or have been in contact with someone who has.
The same disease prevention methods used against seasonal influenza, such as handwashing and cough etiquette, are effective against the novel coronavirus.
If you have a fever, are coughing/sneezing, or have other respiratory symptoms within two weeks of travelling from Wuhan, please wear a surgical mask and contact a health center near you as soon as possible before going to receive treatment from a medical facility. Be sure to mention your history of overseas travel.