Croup, or acute laryngotracheobronchitis, is an acute infectious respiratory disease of infants and children caused by infection of the larynx or the trachea - alone or together. It can cause partial or severe obstruction of the airway, which results in breathing difficulties and coughing. In some children it can be life-threatening.
Coronaviruses employ protein “spikes” to latch onto and infect cells. Contrary to their name, these spikes do not have a rigid and pointed structure. Instead, they resemble chicken drumsticks, with the meaty portion facing outward.
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