Is a sudden loss of smell a sign of a severe viral infection?
1. Introduction A sudden loss of smell, clinically known as anosmia, is a hallmark sign of a viral infection affecting the upper respiratory tract. While the infection itself may not always be systemically critical, the localized inflammatory response can acutely disrupt the olfactory receptors. This sudden sensory deprivation often occurs without concurrent nasal blockage, signaling … Read more