A severe watery diarrhoea, abdominal pain, nausea and vomiting are early symptoms, as are severe chest and lung pains, sore throat, and cough.

• 早期症状为严重水样腹泻、腹痛、恶心和呕吐以及严重胸腔和肺部疼痛、咽喉痛和咳嗽。