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Begin
Mexico reported an outbreak of influenza-like illness to WHO in the small community of La Gloria, Veracruz. -
Unusual Increase
The Ministry of Health (SSA) notified the Panamerican Health Organization of the unusual increase in the number of acute respiratory infections.that same day, the State Health Services of the state of Oaxaca reported the admission to the Aurelio Valdivieso General Hospital of a 39-year-old woman with a very serious case of pneumonia. A laboratory study reported the presence of a respiratory infection of the coronavirus type. -
INER
The National Institute of Respiratory Diseases (INER) informed the SSA of an increase in cases of respiratory infections. It highlighted the involvement of young adults who were admitted with severe pneumonia and rapid progression. -
First cases in USA
15-17 April 2009: First two cases of the new A(H1N1) virus infection were identified from two southern California counties in U.S.A. -
Transmission
New influenza A (H1N1) virus infection, previously identified in two children in the United States, was confirmed in several patients in Mexico -
Declaration of Public Health Emergency of International Concern
Upon the advice of the Emergency Committee called under the rules of the International Health Regulations, the Director-General declared this event a Public Health Emergency of International Concern. -
26 cases in Mexico
Mexico reported 26 confirmed human cases of infection with the same virus, including seven deaths. -
40 cases in USA
The USA Government reported 40 laboratory confirmed human cases of swine influenza A(H1N1), with no deaths. -
Change of Phase
On the advice of the Committee, the WHO Director-General raised the level of influenza pandemic alert from the phase 3 to phase 4. -
Change of Phase
Based on assessment of all available information, and following several expert consultations, the WHO Director-General decided to raise the current level of influenza pandemic alert from phase 4 to phase 5. -
Around the world
48 countries have officially reported 13,398 cases of influenza A(H1N1) infection, including 95 deaths. -
Change of Phase
Upon the guidance and advice of the Emergency Committee called under the rules of the International Health Regulations, the Director- General decided to raise the level of influenza pandemic alert from phase 5 to phase 6. -
More countries with H1N1
Nearly 30 000 confirmed cases have been reported in 74 countries. Further spread is considered inevitable. Globally, this pandemic, at least in its early days, assessed as of moderate severity. -
Cases
39,620 cases of influenza A(H1N1) infection, including 167 deaths have officially reported to WHO. -
Suspension of classes
WHO Consultation on suspension of classes and restriction of mass gatherings to mitigate the impact of epidemics caused by the new influenza A (H1N1) -
Cases
77,201 cases of influenza A(H1N1) infection, including 332 deaths have been officially reported to WHO. -
Cases
Worldwide there have been more than 375,000 laboratory confirmed cases of pandemic influenza H1N1 2009 and over 4500 deaths reported to WHO. -
Cases
177,457 cases of influenza A(H1N1) infection, including 1,462 deaths have been officially reported to WHO. -
Collaboration
Collaborative call to action to reduce impact of pandemic H1N1 2009. WHO, IFRC, UNSIC, OCHA and UNICEF, prompted by the humanitarian imperative, will work with partners such as the Red Cross and Red Crescent Societies, NGOs and civil society to support governments and communities to reduce the impact from the pandemic (H1N1). -
The Peak is Going Down
WHO reports that most countries in the Southern Hemisphere (represented by Chile, Argentina, New Zealand, and Australia) appear to have passed their peak of influenza activity and returned to baseline activity. -
Vaccine
The first commercially-available pandemic influenza vaccines were registered for use and an expedited prequalification procedure was established to respond to the need for emergency immunization with the pandemic vaccine -
Mutations
WHO reports that H1N1 mutations have led to roughly 75 people worldwide developing Tamiflu resistance. Furthermore, the separate D222G or D225G mutation which helps the virus to reach deep into the lungs has been reported in cases both severe and mild in Norway, Ukraine, Brazil, China, Japan, Mexico and the United States. -
Cases
As of this date, 150 countries have shared a total of 19284 specimens (14879 clinical samples and 4405 virus isolates) with WHO CCs for confirmatory diagnosis and further characterization. -
Vaccine´s Distribution
To help countries protect people from developing severe disease from pandemic influenza H1N1 infection, the World Health Organization (WHO) has coordinated the distribution of donated pandemic influenza vaccine to eligible countries. -
Cases
Worldwide more than 208 countries, overseas, territories or communities have reported laboratory confirmed cases of pandemic influenza (H1N1) 2009, including at least 12799 deaths. -
Cases
Worldwide more than 212 countries, overseas, territories or communities have reported laboratory confirmed cases of pandemic influenza H1N1 2009, including at least 15292 deaths. -
End
The World Health Organization officially announced the end of Phase 6 of the Influenza Pandemic Alert, with a global shift into the Post- Pandemic period
