Originally posted by Lorizael
View Post
Announcement
Collapse
No announcement yet.
[serious] Docfeelgood's General Swine Flu Thread
Collapse
X
-
"I have never killed a man, but I have read many obituaries with great pleasure." - Clarence Darrow
"I didn't attend the funeral, but I sent a nice letter saying I approved of it." - Mark Twain
-
Spread of a Novel Influenza A (H1N1) Virus via Global Airline Transportation
http://content.nejm.org/cgi/content/full/NEJMc0904559
To the Editor: Throughout March and April 2009, international air travelers departing from Mexico were unknowingly transporting a novel influenza A (H1N1) virus1 to cities around the world. We analyzed the flight itineraries for all passengers departing from commercial airports in Mexico between March and April 2008, using data from the International Air Transport Association (IATA). The purpose of this analysis was to show how travelers — and consequently to predict how H1N1 — would disseminate worldwide during the initial wavefront of this epidemic. We analyzed IATA data from March and April 2008 for the following reasons: the data accounted for more than 95% of all passenger trips worldwide via commercial airlines, they included information on the flight origins and destinations of actual passengers, data on passenger itineraries for the period from March through April 2009 were unavailable at the time of this analysis, the global pattern of passenger departures from Mexico between March and April varies minimally from year to year, and the epidemic in Mexico was largely unrecognized during the period from March through April 2009, with passenger departures presumably following their usual seasonal pattern.
Our analysis showed that in March and April 2008, a total of 2.35 million passengers flew from Mexico to 1018 cities in 164 countries (Figure 1, and Table 1 in the Supplementary Appendix, available with the full text of this letter at NEJM.org). A total of 80.7% of passengers had flight destinations in the United States or Canada; 8.8% in Central America, South America, or the Caribbean Islands; 8.7% in Western Europe; 1.0% in East Asia; and 0.8% elsewhere. These flight patterns were very similar to those during the same months in 2007 (see Fig. 1 in the Supplementary Appendix). We then compared the international destinations of travelers departing from Mexico with confirmed H1N1 importations associated with travel to Mexico, and we found a remarkably strong degree of correlation. Of the 20 countries worldwide with the highest volumes of international passengers arriving from Mexico, 16 had confirmed importations associated with travel to Mexico as of May 25, 2009 (Table 1). A receiver-operating-characteristic (ROC) curve plotting the relationship between international air-traffic flows and H1N1 importation revealed that countries receiving more than 1400 passengers from Mexico were at a significantly elevated risk for importation. With the use of this passenger threshold, international air-traffic volume alone was more than 92% sensitive and more than 92% specific in predicting importation, with an area under the ROC curve of 0.97 (see Fig. 2 in the Supplementary Appendix).
Comment
-
If you don't care about swine flu, stay out of this thread. If you do care about swine flu, stay in this thread.Click here if you're having trouble sleeping.
"We confess our little faults to persuade people that we have no large ones." - François de La Rochefoucauld
Comment
-
I was on topic.
What are the ingredients of spam?
ham, pork, sugar, salt, water, potato starch and a hint of sodium nitrate to help keep its color. The pork is mostly pork shoulder. SPAM was first invented as a way to use this underutilized part of the cow, ham was a later addition
"I have never killed a man, but I have read many obituaries with great pleasure." - Clarence Darrow
"I didn't attend the funeral, but I sent a nice letter saying I approved of it." - Mark Twain
Comment
-
-
Originally posted by Lorizael View PostIf you don't care about swine flu, stay out of this thread. If you do care about swine flu, stay in this thread.Life is not measured by the number of breaths you take, but by the moments that take your breath away.
"Hating America is something best left to Mobius. He is an expert Yank hater.
He also hates Texans and Australians, he does diversify." ~ Braindead
Comment
Comment