任何新的预防方法必须不损害减少HIV传播风险的现有保护行为和预防战略。
Any new prevention modality must not undermine existing protective behaviours and prevention strategies that reduce the risk of HIV transmission.
之所以减少，主要是因为采取协调一致的公共卫生行动后，由传染病引起的视力损害减少了。
This decrease is principally the result of a reduction in visual impairment from infectious diseases through concerted public health action.
压力会严重损害你的健康，锻炼则可以减少这些影响。
Stress can be extremely damaging to your health. Exercise, meanwhile, can reduce its effects.
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