种痘一般是安全的,但大规模种痘时也偶有并发症发生,其中较严重者为种痘后脑炎和全身性牛痘,后者又以疽型牛痘和湿疹型牛痘为最严重,病死率很高。全身性牛痘国内已有些报导,但因接触感染的湿疹型牛痘则甚罕见,国内只见一例报导。作者曾见到两例全身性牛痘,其中一例为接 Seedpox is generally safe, but when large-scale seedpox occasionally complications, of which more serious are vaccination post-encephalitis and systemic vaccinia, which in turn is the most serious type of vaccinia and eczema-type vaccinia, the case fatality rate is very high. Systemic vaccinia has been reported in some countries, but it is rare because of contact with eczema-type vaccinia. Only one case was reported in China. The author has seen two cases of whole body vaccinia, one of which is connected