Friday, May 15, 2009

U.S. passes Mexico in Confirmed Cases

In the U.S., according to the CDC, there have 4,298 cases in 47 states with 3 deaths (AK, WY, WV, MS are the only states with any cases). This total passes Mexico's confirmed cases count of 2,446 and is more than half of the total confirmed cases across the world (7,520).

U.S. 4,298
Mexico 2,446
Canada 389
Costa Rica 8

Argentina 1
Australia 1
Austria 1
Brazil 8
China 4
Colombia 7
Costa Rica 8
Cuba 1
Denmark 1
El Salvador 4
Finland 2
France 14
Germany 12
Guatemala 3
Ireland 1
Israel 7
Italy 9
Japan 4
Netherlands 3
New Zealand 7
Norway 2
Panama 29
Poland 1
Portugal 1
Republic of Korea 3
Spain 100
Sweden 2
Switzerland 1
Thailand 2
United Kingdom 71


By State:


Alabama 9
Arizona 187
California 221
Colorado 44
Connecticut 33
Delaware 54
Florida 58
Georgia 8
Hawaii 6
Idaho 3
Illinois 592
Indiana 70
Iowa 55
Kansas 23
Kentucky 10
Louisiana 33
Maine 6
Maryland 23
Massachusetts 107
Michigan 134
Minnesota 31
Missouri 18
Montana 1
Nebraska 21
Nevada 21
New Hampshire 17
New Jersey 8
New Mexico 44
New York 211
North Carolina 12
Ohio 11
Oklahoma 22
Oregon 74
Pennsylvania 22
Rhode Island 7
South Carolina 32
South Dakota 3
Tennessee 57
Texas 293 (2 deaths)
Utah 72
Vermont 1
Virginia 17
Washington 176 (1 death)
Washington, D.C. 9
Wisconsin 496

Saturday, May 9, 2009

Update: The State of the Outbreak

In our last post from Sunday, we gave an update on what was known about Swine Flu. Since then, there have been a few more developments;

Swine Flu Continues to Spread

Swine Flu / H1N1 is acting like other flu viruses and continues to infect more people. In the U.S., there are now 2,600 confirmed cases across 44 states and 3 confirmed deaths.[1] Around the world, there have been more than 4,694 cases across 30 countries[2] and it shows no signs of stopping it's growth. While it appears, H1N1 is not a particularly deadly form of flu, there are two main concerns at this point:

Will the virus mutate and become more deadly this fall/winter ?

As discussed in a previous post, it's current form does not seem to be very severe, H1N1 has the potential to mutate and become a real problem epidemic.

Why are the deaths disproportionally young ?

Another issue that continues to concern scientists is the fact that those dieing from H1N1 have tended to be young and the number is only skewing younger as time goes on.[3] Acting Director for the CDC, Dr. Richard Besser, said during a news conference that the severe cases of H1N1 were "younger than what you would see in seasonal flu. In seasonal flu you tend to see a predominance of burden of disease in the elderly and in the very young, and here we are seeing it more in the younger population... That is something that raises concern."

As this chart shows, this is a concern because this was the patterned followed by the devastating Spanish Flu. However, it's only something researchers are keeping their eye on and want to understand better. The sample size is still not very significant with relatively few deaths at this point.

[1] http://www.cdc.gov/h1n1flu/
[2] http://www.who.int/en/
[3] http://www.ajc.com/health/content/shared-auto/healthnews/cdc-/626829.html

Friday, May 8, 2009

CDC Map of Confirmed Cases

The CDC has created a map of the swine flu / H1N1 confirmed cases in the U.S.



http://www.cdc.gov/h1n1flu/update.htm

Thursday, May 7, 2009

WHO says infected pork a concern

The World Health Organization said Wednesday that meat from pigs infected with H1N1 should not be eaten by humans and those animals should be kept out of the food supply. "Meat from sick pigs or pigs found dead should not be processed or used for human consumption under any circumstances," Jorgen Schlundt, director of WHO's Department of Food Safety, Zoonoses and Foodborne Diseases.

WHO clarified their stance, writing on their website, "Swine influenza has not been shown to be transmissible to people through eating properly handled and prepared pork (pig meat) or other products derived from pigs. The swine influenza virus
is killed by cooking temperatures of 160°F/70°C, corresponding to the general guidance for the preparation of pork and other meat."

Links:

WHO Swine Flu FAQ (.pdf)
CDC's Swine Flu Key Facts
Reuters WHO casts wary eye on meat...

Saturday, May 2, 2009

Is swine flu a threat ? Summary of what we know



Mexico reported no new deaths from swine flu last night[1] and researchers continue to debate how serious a threat swine flu is[2], at the same time the World Health Organization is still at pandemic level phase 5 and officials say it's 'imminent' they'll go to phase 6 (their most serious level; reserved for true pandemics).[3] And it's clear from watching #swineflu on Twitter, that the public is still freaking out about it. Where does this leave us ? Here are the facts we know, with citations from credible sources:

Swine Flu / H1N1 is Real and Spreading

Swine flu is a real strain of the flu, has infected 160 people in the U.S. so far[4] and has reached Europe and Asian. It continues to infect more people and the earliest a vaccine could be ready is sometime this fall, as it will take months to create and then manufacture large quantities[5]. The virus itself is a new, unusual strain of the flu with components of the normal North American Flu, avian flu, and swine flu mixed together and therefore few people have a natural immunity to it (as they would for typical strains). This, combined with the fact that it killed a number of young, healthy victims in Mexico are what caused great concern for WHO, the CDC, and other health organizations. Each continues to take it very seriously; the CDC is recommending anyone who has had contact with someone who has the virus within the past 7 days to get tested and, if infected, treated with antiviral drugs oseltamivir (Tamiflu) or zanamivir (Relenza).[6]


Researchers are cautiously optimistic it's not a nasty virus

As covered before (read article), initial reports indicated that a high percentage of young and health victim were dieing, which mirrored the Spanish Flu outbreak of 1918. And that's where the cause for the concern is; if swine flu kills at a similar rate as the Spanish Flu, we have a real, nasty pandemic that could kill millions. However, if it turns out to be no more deadly than the normal flu, then there will be some deaths, but not significantly more than die each year from the flu normally (which, in the U.S. is about 36,000).[7]

A good sign is that the only deaths so far have been in Mexico, so it's possible that other factors besides H1N1 contributed to those deaths and the virus itself is not the threat it was feared to be. Based on it's behavior so far and from doing DNA analysis, it does not look H1N1 poses a significant threat,[8] however, the virus does seem to be targeting younger people, with the CDC reporting "very few cases of people over 50" in the U.S.[10]. In addition, there is a chance that it could mutate into a more deadly form, which is why health officials continue to take it very seriously and make preparations including creating vaccines. However, given there have not been observed mutations so far, it is increasingly unlikely it will become a significantly more serious threat than the normal, seasonal flu.

Initial Outbreak


Unfortunately, there is also concern that the initial outbreak will peter out and then this winter, during the cold weather (when the flu virus is transmitted more easily), it will come back stronger. This is the pattern the 1918 Spanish Flu pandemic followed.[9]


H1N1 does not currently seem like a big threat, but, given how bad it could be in the unlikely chance it does turn out to be more deadly than currently thought, it's prudent to take it seriously.


[1] - http://www.google.com/hostednews/ap/article/ALeqM5gzz357patY4-QaJFvo9O95zMM_EQD97U7BH00
[2] - http://www.kansascity.com/444/story/1174048.html
[3] - http://www.bloomberg.com/apps/news?pid=20601124&sid=ab1UPXgmE538&refer=home
[4] - http://www.cdc.gov/h1n1flu/
[5] - http://abcnews.go.com/Health/Healthday/story?id=7470044&page=1
[6] - http://www.cdc.gov/h1n1flu/recommendations.htm
[7] - http://www.cdc.gov/flu/keyfacts.htm
[8] - http://www.irishtimes.com/newspaper/world/2009/0502/1224245838739.html
[9] - http://en.wikipedia.org/wiki/1918_flu_pandemic
[10] - http://uk.reuters.com/article/usTopNews/idUKTRE54229K20090503

Friday, May 1, 2009

HHS and CDC Webcast

Health and Human Services Secretary Kathleen Sebelius and Homeland Security Secretary Janet Napolitano is hosting a webcast to answer questions on H1N1 / swine flu / #swineflu. They're joined by Acting Director of the Centers for Disease Control and Prevention, Dr. Rich Besser.