第五病
传染性红斑（Erythema infectiosum），又名第五病，是儿童常见的出疹性疾病，于1975年被发现是由人类小DNA病毒 B19所引起。传染性红斑之所以被称为第五病，系因该病为历史上第五种被确认的儿童皮肤出疹性疾病。其他常见的皮肤出疹是：1、痲疹，2、猩红热，3、德国麻疹，4、公爵疹，以及落在传染性红斑之后的6、小儿急疹。
这种病曾在香港发现过。
Fifth disease
中文百科
英语百科
Fifth disease 第五病
- Not to be confused with sixth disease. See Exanthema subitum.
Erythema infectiosum or fifth disease is one of several possible manifestations of infection by parvovirus B19. The disease is also referred to as slapped cheek syndrome, slapcheek, slap face or slapped face.
The name "fifth disease" comes from its place on the standard list of rash-causing childhood diseases, which also includes measles (1st), scarlet fever (2nd), rubella (3rd), and Dukes' disease (4th), though the latter is no longer widely accepted as distinct.
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