Update: influenza activity - United States and worldwide, 1994-95 season, and composition of the 1995-96 influenza vaccine
Article Abstract:
Worldwide influenza during the 1994-95 season occurred intermittently and in local outbreaks. Fewer severe illnesses were recorded compared to the previous year. Both influenza A and B circulated in moderate or low levels. Influenza A spread sporadically in the U.S., Canada, China, Thailand and several European countries. The number of Type A cases in the U.S. reached 2,654, or 78% of total cases. Only 22%, or 769 cases, were Type B. In October, an outbreak of the influenza B virus was first recorded at a school in Portugal. Other outbreaks of influenza B were reported in the U.S., China and Iran, with epidemics in Italy and Russia. The FDA has suggested that the 1995-96 influenza vaccine contain viruses A/Johannesburg/33/94 (H3N2), A/Texas/36/91 (H1N1) and B/Bejing/184/93.
Publication Name: JAMA, The Journal of the American Medical Association
Subject: Health
ISSN: 0098-7484
Year: 1995
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Update: influenza activity - worldwide, 1995
Article Abstract:
Worldwide influenza occurrences were low to moderate from Oct 1994 through the end of Aug 1995. Of 760 influenza isolates collected and analyzed by the World Health Organization Collaborating Center for Surveillance, Epidemiology, and Control of Influenza at the Centers for Disease Control over this time-period, 70% were from North America, 10% from Europe, 17% from Asia and 3% from Oceania and South America. Influenza A viruses accounted for 52% of the isolates collected, with 57% of the A viruses being antigentically related to the 1994-95 vaccine strain. Influenza B viruses accounted for 36% of those collected, 74% of which were related to the 1995-96 vaccine component. Trends in 1995 influenza activity for five global geographical regions are discussed.
Publication Name: JAMA, The Journal of the American Medical Association
Subject: Health
ISSN: 0098-7484
Year: 1995
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Update: influenza activity - worldwide, March-August 1997
Article Abstract:
Influenza B viruses may spread more during the 1997-1998 flu season than during the 1996-1997 season in the US, according to the CDC. In March-August 1997, influenza B caused most outbreaks in the US, Europe and China, while strains of influenza A were predominant in Hong Kong, South Africa and Australia. This data guides the development of the flu vaccine, which CDC recommends for older people, those with chronic illness, health care workers and others. Vaccine production grew to 73 million doses in 1995 as more than half of Americans over 65 were vaccinated.
Publication Name: JAMA, The Journal of the American Medical Association
Subject: Health
ISSN: 0098-7484
Year: 1997
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