About two weeks after entering the body, the virus starts infecting immune cells themselves - specifically T cells - and that is considered the secondary viremia.

大概两周之后，病毒开始犯免疫细，特别是T细，这就是第二次病毒血症。

In primary viremia the virus infects a part of immune system in the liver and spleen, called the reticuloendothelial system, which is made of phagocytic cells.

第一次病毒血症中，病毒脾的部分免疫统，即由巨噬细的网状内皮统。

Birds act as a reservoir for the virus, meaning the virus can replicate at high enough levels to cause significant viremia, or elevated viral blood counts, which allows for transmission to other uninfected mosquitoes.

鸟类是此病毒的宿主，意味着病毒可在其体内以较高的水平复制，以至于导致病毒血症，继而传播给其它未受感染的蚊子。

We also believe that long-term inflammation, as long-term low viremia from the SARS virus, could lead to cardiac long COVID.

我们还认为，长期炎症，如同SARS病毒引起的长期低水平病毒血症一样，可能导致心脏长期新冠症状。

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。