Excessive training will cause training large load and low immunity.

训练负荷过大，会出现过度训练，免疫力低下等问题。

youdao

Chronic patients should also be according to the illness rest appropriately, prevent excessive fatigue, low immunity and cause infection again.

慢性患者亦应根据病情适当地休息，防止过度疲劳后，机体免疫力低下而造成再感染。

youdao

On the other hand, even if males have a strong immune system that clears infection, they will become reinfected rapidly, so the effective benefit of immunity is low.

另一方面，即使男性拥有一个更加强健的免疫系统，能够消除感染，他们也会快速地被再次感染，所以免疫系统的有效效益很低。

youdao

The current recommendation is based on unique conditions associated with the existing pandemic, including low levels of population immunity to 2009 H1N1, the potential for health-care personnel to be exposed to H1N1 patients, and other factors, Dimond says.

CNN: STORY HIGHLIGHTS

His immunity would be low.

NPR: Origin of AIDS Linked to Colonial Practices in Africa

Immunity to dengue is low in Singapore's population because of the intensive dengue-carrier controls, "making the population vulnerable to outbreaks, " said Ng Lee Ching, director of the Environmental Health Institute at Singapore's National Environment Agency.

WSJ: Dengue Fever on the Rise in Singapore