By Open Hands Library Curator
According to the World Health Organization (2021), being deaf is medically defined as the reduced ability to detect sounds with hearing thresholds of 20dB or greater in one or both ears. In simple terms, sounds as small as leaves rustling cannot be heard. As such, hearing loss and deafness may be mild, moderate, severe, or profound and can be caused by various things such as infection, injury, or comorbidity such as Usher's or CHARGE syndrome. However, there is more to deafness than just "hearing loss".
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