HIGHLIGHTS
SUMMARY
A viral upper respiratory tract infection is the most prevalent cause of acute sinusitis (URTI). This inflammation obstructs the Acute sinusitis and chronic sinusitis Acute sinusitis is usually viral in immunocompetent people in the community (e_g, rhinovirus, influenza, parainfluenza). Patients with compromised immune systems risk acquiring acute invasive fungal sinusitis. Chronic fungal infections (Aspergillus, Sporothrix, Pseudallescheria) are more common among the elderly and immunocompromised. Risk factors Risk factors are the factors that increase the chances of developing a sinus infection. Serous or mucous secretions might be found in the middle meatus of individuals with . . .
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