But the latest experiment reinforces theories that existing latent infection can be activated when parts of the body particularly the feet and nose get wet and cold.

• 但他们最新进行的实验表明，当身体的某些部位（尤其是双脚和鼻子）处于潮湿冰凉的环境里时，原本处于潜伏期的病毒感染会变得活跃起来。