South Korean workers wearing protective gear fumigate a theater to a deadly outbreak of Middle East Respiratory Syndrome (MERS). Photo: AFP
Coronaviruses are a large family of viruses that cause diseases ranging from the common cold to the severe acute respiratory syndrome (SARS).
According to the World Health Organisation, the SARS outbreak in 2003 affected 8,098 people, in more than two dozen countries, with 774 deaths, before it was controlled.
