A Narrative Review of Influenza: A Seasonal and Pandemic Disease

摘要: Influenza is an acute respiratory disease caused by the influenza A or B virus. It often occurs in outbreaks and epidemics worldwide, mainly during winter season. Significant numbers of virus particles are present secretions infected persons, so infection can be transmitted sneezing coughing via large particle droplets. The mean duration shedding immunocompetent adult patients around 5 days but may continue for up to 10 more-particularly children, elderly adults, with chronic illnesses, immunocompromised hosts. typically begins abrupt onset high-grade fever, myalgia, headache, malaise. These manifestations accompanied symptoms tract illnesses such as nonproductive cough, sore throat, nasal discharge. After a typical course, affect other organs lungs, brain, heart more than it cause hospitalization. best way prevent administer annual vaccinations. Among severely ill patients, early commencement antiviral treatment (<2 d from illness onset) associated reduced morbidity mortality, greater benefits allied earlier initiation treatment. Given significance burden, we reviewed latest findings diagnosis management influenza.