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[HEALTH] · Italy · 25 sources

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Virologist explains causes of persistent long colds

Virologist Fabrizio Pregliasco has addressed the phenomenon of the “long cold,” characterized by persistent symptoms such as constant fatigue, nasal congestion, and chronic coughing that last for weeks.

Pregliasco, the director of the School of Specialization in Hygiene and Preventive Medicine at the State University of Milan, distinguishes between two primary causes for these prolonged symptoms. The first occurs when respiratory inflammation persists even after the virus has been eliminated from the body. The second involves successive infections, where an individual contracts a new virus while still recovering from a previous one, creating the illusion of a single, unending illness.

This seasonal trend is attributed to the simultaneous circulation of multiple respiratory viruses rather than an increase in virus aggressiveness or a weakening of human immune defenses.

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Adnkronos Salute · Fabrizio Pregliasco · State University of Milan

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