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[5] [8] Like the Saffir–Simpson Hurricane Scale, the PSI ranges from 1 to 5, with Category 1 pandemics being most mild (equivalent to seasonal flu) and level 5 being reserved for the most severe "worst-case" scenario pandemics (such as the 1918 Spanish flu [3] [5]). A graphical representation of the PSI categorization scheme
The Centers for Disease Control and Prevention (CDC) identified the first two A/09(H1N1) swine flu cases in California on April 17, 2009, via the Border Infectious Disease Program, [135] for a San Diego County child, and a naval research facility studying a special diagnostic test, where influenza sample from the child from Imperial County was tested. [136]
Children infected in the 2009 H1N1 flu pandemic were no more likely to be hospitalized with complications or get pneumonia than those who catch seasonal strains. About 1.5% of children with the H1N1 swine flu strain were hospitalized within 30 days, compared with 3.7% of those sick with a seasonal strain of H1N1 and 3.1% with an H3N2 virus. [198]
Doctor's office visits for influenza symptoms have hit their highest level in 15 years, since the 2009 swine flu pandemic rocked the nation. ... You can take other simple actions to help prevent ...
The United States experienced the beginnings of a pandemic of a novel strain of the influenza A/H1N1 virus, commonly referred to as "swine flu", in the spring of 2009.The earliest reported cases in the US began appearing in late March 2009 in California, [114] then spreading to infect people in Texas, New York, and other states by mid-April. [115]
Flu infections have reached the highest level since the winter of 2010 and 2011 when the swine flu swept ... For the first time since the COVID-19 pandemic began five years ago, flu-related deaths ...
WHO The Emergency Committee meets for the third time, [54] and the WHO raises its pandemic alert level from Phase 4 to Phase 5, its second highest. [55] As of 1800 GMT, nine countries have officially reported 148 cases of swine influenza A(H1N1) infection. [56] ASEAN ASEAN officials are looking at coordinating measures to address the potential ...
The 2009 swine flu pandemic in North America, ... On April 24, 2009, schools (from pre-school to university level) as well as libraries, museums, ...