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Revista chilena de infectología

versão impressa ISSN 0716-1018


FICA C, Alberto et al. Respiratory infections caused by metapneumovirus in elderly patients. Rev. chil. infectol. [online]. 2011, vol.28, n.2, pp.174-178. ISSN 0716-1018.

Human metapneumovirus infections are increasingly recognized among adult patients and the aim of this report is to present a series of 4 cases admitted during the winter of 2010. All were detected by direct fluorescence anti-bodies assay of respiratory samples and all were female patients with an age range of 79 to 95 years, including two bedridden cases, one with dementia and three with chronic obstructive pulmonary disease. One patient presented with parainfluenza 3 virus coinfection. Patients presented with pneumonía in 3 cases (interstitial pattern in 2 and lobar consolidation in the other) or acute exacerbation of chronic bronchitis in the remaining case. Symptoms were present for 3 to 7 days before admission and 3 have wheezing. All had hypoxemic or global respiratory failure and lymphopenia (< 1.000/mm3). Hospitalization lasted for 5 to 20 days, marked in the 3 cases that survived by prolonged bronchial obstructive manifestations. Two cases required non invasive mechanical ventilation. Human metapneumovirus infections can decompensate elderly patients with chronic respiratory diseases generating hospital admission and a prolonged morbidity marked by obstructive manifestations and sometimes can become into death.

Palavras-chave : metapneumovirus; chronic obstructive pulmonary disease; elderly; pneumonia; fluorescent antibody technique; lymphopenia.

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