2009 swine flu pandemic timeline summary

H1N1 map by confirmed community outbreaks

== 2009 Swine Flu Pandemic Timeline Summary ==

The 2009 Swine Flu Pandemic was a global outbreak of a new strain of H1N1 influenza virus that emerged in early 2009. The pandemic had a significant impact on public health and healthcare systems worldwide. Here is a summary of the key events during the 2009 Swine Flu Pandemic:

April 2009

- April 15: The first case of the new H1N1 influenza virus is reported in Mexico. - April 24: The World Health Organization (WHO) declares the outbreak a Public Health Emergency of International Concern.

May 2009

- May 1: The United States declares a public health emergency in response to the spread of the virus. - May 4: The WHO raises the pandemic alert level to Phase 5, indicating sustained human-to-human transmission. - May 11: The WHO declares the 2009 Swine Flu Pandemic a global pandemic.

June 2009

- June 11: The WHO declares the pandemic to be the first influenza pandemic of the 21st century. - June 25: The number of confirmed cases surpasses 70,000 worldwide.

July 2009

- July 6: The number of confirmed deaths from the virus exceeds 300. - July 27: The WHO reports that the virus is spreading rapidly in the southern hemisphere.

August 2009

- August 10: The WHO reports that the virus is continuing to spread globally. - August 21: The number of confirmed cases worldwide surpasses 200,000.

September 2009

- September 10: The WHO announces that the virus has become the dominant influenza strain in many countries. - September 28: The number of confirmed deaths from the virus exceeds 2,000.

October 2009

- October 25: The WHO reports that the virus is still circulating in many parts of the world. - October 29: The number of confirmed deaths from the virus surpasses 5,000.

November 2009

- November 11: The WHO reports that the virus is causing severe illness in certain populations. - November 18: The number of confirmed cases worldwide surpasses 500,000.

December 2009

- December 11: The WHO reports that the virus is still causing illness in many countries. - December 31: The WHO declares the end of the pandemic phase of the 2009 Swine Flu Pandemic.

This timeline provides a brief overview of the key events that occurred during the 2009 Swine Flu Pandemic. The pandemic had a lasting impact on global public health and highlighted the importance of preparedness and response to emerging infectious diseases.