Update: Influenza Activity--United States, 1999-2000 Season
Article Abstract:
Statistics from the Centers for Disease Control and Prevention indicate that influenza activity in the US may have peaked in mid-January. Between October 3 and January 15, the highest percentage of patient visits to U.S. sentinel physicians for influenza-like illness (ILI) occurred during the week ending January 1, 2000. During that week, the percentage of patient visits for ILI was greater than normal all over the country. For the week ending January 15, the percentage of patient visits for ILI began to drop. More state and territorial epidemiologists reported widespread or regional influenza activity during the week ending January 15 than any other week.
Publication Name: JAMA, The Journal of the American Medical Association
Subject: Health
ISSN: 0098-7484
Year: 2000
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Update: Influenza Activity--United States, 1998-99 Season
Article Abstract:
Most states experienced outbreaks of influenza during the winter of 1998-1999. Influenza activity began to increase in mid-January, 1999. During the week ending February 13, 1999, 43 states reported influenza outbreaks. In some cases, the outbreaks and the mortality associated with them could have been considered an epidemic. Influenza A virus accounted for 80% of the outbreaks but influenza B virus occurred in most areas. One disturbing observation was an outbreak of influenza in a nursing home even though most of the residents had been vaccinated against influenza.
Publication Name: JAMA, The Journal of the American Medical Association
Subject: Health
ISSN: 0098-7484
Year: 1999
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Update: Influenza Activity--United States, 1999-2000 Season
Article Abstract:
Influenza activity in the US peaked in late December, 1999 and early January, 2000 and appears to be decreasing. Ninety-nine percent of diagnostic samples from people with influenza tested positive for the influenza A virus. The number of influenza cases in the winter of 1999/2000 did not exceed the number in other years. However, as a percentage of total deaths, the percentage caused by pneumonia and influenza exceeded the percentage in previous years.
Publication Name: JAMA, The Journal of the American Medical Association
Subject: Health
ISSN: 0098-7484
Year: 2000
User Contributions:
Comment about this article or add new information about this topic:
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