👉 NCEM virus, a highly contagious, severe respiratory illness caused by a novel coronavirus that has been identified in China and may spread globally. It is characterized by fever, cough, difficulty breathing, and persistent symptoms lasting for at least 14 days. Symptoms typically appear within two to three weeks after infection. NCEM virus is transmitted through close contact with an infected person or droplets from their respiratory secretions. Treatment options include supportive care and antibiotics.