A trained health worker recorded the presence or absence of 31 clinical signs, such as difficulty in feeding and lethargy, and a paediatrician then assessed each case for severe illness.

• 一位受过培训的卫生工作者记录下31种临床体征是否存在，例如进食困难和嗜睡，然后一位儿科医生评估每一个病例是否患有严重疾病。