Influenza Surveillance in an Urban Area
In Houston the yearly influenza epidemics have been defined virologically by community surveillance obtained by testing specimens submitted from patients with acute respiratory illnesses seen by sentinel physicians. Mortality attributed to influenza and pneumonia has increased regularly during the p...
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| Format: | Article |
| Language: | English |
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Hindawi Limited
1993-01-01
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| Series: | Canadian Journal of Infectious Diseases |
| Online Access: | http://dx.doi.org/10.1155/1993/820367 |