Characteristics of included studies, arranged alphabetically by first author.

When studies contained more than one patient series each series was displayed separately. All available data are included, but if data were not extractable it is indicated by a “-“. Percentage and (number/total number of patients) are quoted, but if no patient number was quoted then a “NA” is used. If no information on serovars is present a “*” is used.
Characteristics of included studies, arranged alphabetically by first author.

若某项研究包含多组病例系列，则每组病例系列将单独展示。本数据集纳入所有可获取的数据；若数据无法提取，则以“-”标注。统计指标以百分比及（病例数/总患者数）的形式呈现，若未提供患者数量，则使用“NA”表示。若未提供血清型（serovars）相关信息，则以“*”标注。
纳入研究的特征信息将按第一作者姓氏的字母顺序排列。