The signs of COVID-19, the infection caused by the coronavirus, are often mild and are very similar to a cold, flu or chest infection.
Typical symptoms of infection include a fever, a cough, and shortness of breath or difficulty breathing.
These are common complaints at this time of year, so where someone has travelled or who they have come into contact with are important in determining whether they might have coronavirus.
The NHS considers people to be at risk if they have the symptoms above and have recently travelled to mainland China, South Korea, Thailand, Japan, Hong Kong, Taiwan, Singapore, Malaysia, Macau, Vietnam, Cambodia, Laos, Myanmar, or the north of Italy (north of Pisa and Florence).
People who have, in the past two weeks, been to the Hubei province of China, Iran, the South Korean cities of Daegu or Cheongdo in South Korea, or one of 11 quarantined towns in northern Italy are considered to be at risk even if they feel well.
The 11 towns in Italy are Codogno, Castiglione d’Adda, Casalpusterlengo, Fombio, Maleo, Somaglia, Bertonico, Terranova dei Passerini, Castelgerundo, San Fiorano and Vo’ Euganeo.
Those who have come into contact with others who have visited those places and then feel ill may also be at risk.
People who fit any of the categories above should stay at home and self-isolate, away from other people, and phone NHS 111 for more advice. If you think you have the coronavirus do not go to a doctor’s surgery or hospital.
The virus can spread through coughing, sneezing, or by being close to someone for prolonged periods of time.
To protect themselves, people should cough and sneeze into a tissue and throw it away, wash their hands and avoid contact with sick people.