| Literature DB >> 7843353 |
Abstract
For the past 400 years, epidemics resembling influenza have been recorded in many countries. Epidemics from as early as the 16th Century in England and the 18th Century in the USA are recognizable as influenza, even in the absences of precise knowledge of their causative agents.Mesh:
Year: 1994 PMID: 7843353 DOI: 10.1007/bf01719673
Source DB: PubMed Journal: Eur J Epidemiol ISSN: 0393-2990 Impact factor: 8.082