Author: Bjarnason, Agnar; Westin, Johan; Lindh, Magnus; Andersson, Lars-Magnus; Kristinsson, Karl G; Löve, Arthur; Baldursson, Olafur; Gottfredsson, Magnus
Title: Incidence, Etiology, and Outcomes of Community-Acquired Pneumonia: A Population-Based Study Document date: 2018_2_8
ID: sw8ghj6q_42
Snippet: This study indicated that the likelihood of detecting pandemic influenza A(H1N1)pdm09 was increased for patients reporting hemoptysis. This strain has been associated with more severe disease than seasonal influenza [19] . Blood in sputum was reported in 30% of the first influenza A(H1N1) pdm09 cases from Mexico in 2009, whereas hemorrhagic tracheitis and bronchitis has been noted as a histological feature in severe cases in prior influenza pande.....
Document: This study indicated that the likelihood of detecting pandemic influenza A(H1N1)pdm09 was increased for patients reporting hemoptysis. This strain has been associated with more severe disease than seasonal influenza [19] . Blood in sputum was reported in 30% of the first influenza A(H1N1) pdm09 cases from Mexico in 2009, whereas hemorrhagic tracheitis and bronchitis has been noted as a histological feature in severe cases in prior influenza pandemics [36, 37] . Other reported symptoms were similar in all groups and did not help in discerning between different etiologies. The lack of correlation of symptoms with etiology has been demonstrated previously and is confirmed by these results [38] .
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