有人知道Parvovirus B19是什么病吗？

ppm

今天cc发了个email, 说园里发现一例Parvovirus B19。

网上是这么说的
Parvovirus B19 is a common childhood viral illness. It is also called fifth disease, "slapped cheek" or erythema infectiosum. About 50 per cent of all adults have been infected sometime during childhood or adolescence. People who have had parvovirus B19 are usually immune to it for life. Parvovirus B19 only infects humans and cannot be transmitted to or from animals.

What are the symptoms?
The ill child typically has a "slapped-cheek" rash on the face and a lacy rash on the trunk and limbs. Ocassionally, the rash may itch. An ill child may have a low-grade fever, malaise, or a "cold" a few days before the rash breaks out. The child is usually not very ill, and the rash resolves in 7 to 10 days.

可是不明白中文里是什么？有没有宝宝得过这种病的？

这两天我家宝宝很闹，吃饭睡觉都不好，尤其夜里老哭，今天早晨开始流鼻涕，不知道是不是已经传染上了？