Most patients are between 30 and 79 years (87%), 20-29 years (8%), over 80 years (3%), 10-19 years (1%). years old and < 10 year (1%). These numbers were presented by the Chinese center for disease control and prevention and included 72314 cases. The numbers my vary from country to country. Be aware that the reported age distribution greatly depends on the population that is being tested. Some countries only test severely diseased (which are usually older). For example currently the average age in Italy is >80. While other countries perform tests also in suspects with mild symptoms (younger population).