Pandemic progress: how H1N1 spread
The Ottawa Citizen
Published: Saturday, August 29, 2009April
WHO alert levels:
April 13
First recorded fatality
April 26
First Canadian cases
April 27: Level 4
'Increase in risk of pandemic'
April 29: Level 5
'Imminent' pandemic
May
May 20
Cases: 10,000+; Deaths: 80
June
June 11: Level 6: Pandemic declared
Countries affected: 74
Cases: 27,000+
Deaths: 141
July
July 24
Countries affected: 160+
Deaths: 800
6 Mexican officials declare an alert following an outbreak of "swine flu" in the town of La Gloria. About 60 per cent of the town of 3,000 are affected.
13 The first recorded fatality occurs, a 39-year-old woman in Oaxaca, Mexico.
16 Mexico contacts Pan-American Health Organization, an arm of the World Health Organization, over the illness.
22 The Mexican health ministry issues a nationwide alert and samples are sent to Canada for testing.
23 U.S. public health officials announce that seven people in California and Texas have been diagnosed with a flu virus known as H1N1, but all seven recovered. Canadian public health authorities announce that the Mexican "swine flu" virus is the H1N1 virus.
24 The WHO announces that around 800 suspected cases of H1N1 have been recorded in Mexico, including 60 suspected deaths. Health authorities around the world go on alert.
25 An emergency committee of the WHO meeting in Geneva warns that the virus has "pandemic potential." Mexico orders isolation of sick people and closes many public establishments.
26 Canadian officials confirm four cases of H1N1 on the country's east coast.
27 WHO raises its alert level from 3 to 4 on a scale of 6, meaning there is sustained human-to-human transmission of the virus causing outbreaks in at least one country and signalling a "significant increase in risk of a pandemic."
28 Costa Rica confirms instances of H1N1, the first country in Central America to be hit by the virus. Israel confirms its first case of swine flu, the first Middle Eastern country.
29 Ten New Zealand students are confirmed to have H1N1 flu after returning from a study trip to Mexico.
29A 23-month-old Mexican child is the first confirmed death in the United States and the first one outside Mexico. WHO raises alert level to 5, calling on countries to prepare for an "imminent" pandemic. The first cases involving people who had not visited Mexico are confirmed in the United States, Spain and Germany.
30 WHO adopts the term "influenza A (H1N1)" after veterinary experts say disease is not occurring among pigs.
30 Egypt says it intends to slaughter its entire pig population, even though no cases have been detected there and despite the WHO pronouncement that H1N1 cannot be caught from eating properly prepared pork. This leads to clashes with the Christian minority, who keep most of Egypt's 400,000 pigs.
30The Netherlands, Switzerland and Ireland confirm instances of the virus.
1 Police in Hong Kong seal off the Metropark hotel after test results on a 25-year-old Mexican man confirmed he has the virus. The WHO warns that the traditional flu vaccines have little effect against the virus.
2 South Korea confirms its first instance of the virus, isolating a 51-year-old woman who had returned from a trip to Mexico. France, Denmark and Italy report their first confirmed cases of H1N1. India says it is monitoring a suspected case of H1N1.
SOURCE
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