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Which countries reported H1N1 cases soon after the outbreak began in Mexico?
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influenza pandemic (H1N1) of 2009
Doctors at the Mexico City Navy Hospital wearing protective gear as they tend to patients complaining of H1N1 flu-like symptoms.
Following the initial outbreak in Mexico, the H1N1 virus spread rapidly to other countries, primarily through international air travel.12
The United States was among the first countries to report cases in April 2009, with infections identified in Texas, New York, California, and other locations. Shortly after the World Health Organization declared a public health emergency on April 25, 2009, the virus was confirmed in several additional nations, including:1
- Spain1
- Germany1
- Austria1
- United Kingdom1
- Israel1
- New Zealand1
- Canada (specifically provinces including Nova Scotia, Alberta, Ontario, and British Columbia)1
Additionally, many other countries reported suspected cases during this early period, such as Australia, Chile, Colombia, and France. By June 2009, as the outbreak reached pandemic status, further upsurges in cases were noted in countries including Japan.13