In oral and genital herpes, the primary infection is most often asymptomatic.

在口腔和生殖器疱疹中，原发感染通常无症状。

Recurrent episodes are usually less severe than the primary infection, and sometimes there are no symptoms at all.

复发感染通常没有原发感染严重，甚至有时没有任何症状。

The virus now causes primary infection called varicella or chickenpox, and it has two stages - primary viremia and secondary viremia.

这时候引起的初次感染叫水痘，有第一次病毒血症与第二次病毒血症2个阶段。

These can happen from a primary infection, but more commonly happen during reactivation when some of the virus can escape into the bloodstream and reach the brain.

这些可能由于原发性感染造成，但更多的见于复发，（当复发时）一些病毒经血液传播到大脑造成。

All right, as a quick recap: varicella zoster virus is a herpesviruses that causes primary infection in the lymph nodes and secondary infection in the keratinocytes and neurons in the skin.

得！快速回顾一下：水痘带状疱疹病毒主要导致淋巴结感染，和皮肤处神经与角质形成细胞的继发感染。