Acute bacterial rhinosinusitis is the mucosal inflammation of the nose and paransal sinuses caused by bacteria lasting >10 days for up to 4 weeks or symptoms worsening for 5-7 days and is <12 weeks with complete resolution of symptoms.
It is often preceded by a viral upper respiratory tract infection.
Signs and symptoms are nonspecific and typically difficult to differentiate from viral upper respiratory tract infection.
There is fever with nasal obstruction/congestion or anterior and/or posterior purulent drainage, with or without facial pressure/pain/fullness and reduction/loss of smell. Streptococcus pneumoniae and unencapsulated strains of Haemophilus influenzae cause half of acute rhinosinusitis cases.
Adding the neuraminidase inhibitor oseltamivir to usual care speeds up recovery from influenza-like illness by a day compared with usual care alone, with even greater benefits seen in older, sicker patients with comorbidities, according to the ALIC4E study.
Healthcare personnel (HCP) who use medical masks when in contact with patients with respiratory illness are no more likely to acquire influenza or other viral respiratory illnesses than HCPs who use N95 respirators, according to the ResPECT* study.