If you miss even one exposed individual and they get sick, the virus keeps spreading.

你即使是错过一个感染病毒的个体，病毒传播就会持续蔓延。

This reaction produces a change in color, indicating that the sample tested positive and that the individual has been exposed to the virus.

这种反应会导致颜色发生变化，表明样本检测呈阳性， 并且该人已接触过该病毒。

Importantly, CBD also reduced the levels of the stress hormone cortisol that is often elevated when addicted individuals are exposed to drug use.

重要的是，CBD 还降低了应激激素皮质醇的水平， 当成瘾者接触药物时， 皮质醇通常会升高。

In fact, it's estimated that 98 percent of the U.S. population has some level of PFAS contamination and individuals exposed on a regular basis to chemicals build up cumulatively.

据估计，98%的美国体内都有一定程度的PFAS污染物，而那些长期暴露于化学物质中的人，污染物则会逐渐积累。