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，病开始侵犯细胞，特别是T细胞，这就是第二病。

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

这时候引起的初感染叫水痘，有第一病与第二病2个阶段。

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.

第一病中，病入侵肝脾的部分统，即由巨噬细胞组成的网状内皮统。

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.

鸟类是此病的宿主，意味着病可在其体内以较高的水平复制，以至于导致病，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，如同SARS病引起的长期低水平病一样，可能导致心脏长期新冠状。

I think the leg must be getting septic.

我觉得他的腿引发了脓。