Flu Outbreak in Mexico

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  • Sailor

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    Lets hope this peters out.


    Outbreaks in Mexico, U.S. tied to new swine flu
    Source of unique virus a mystery; CDC expects more cases

    updated 8:38 a.m. AKT, Fri., April 24, 2009
    The unique strain of swine flu found in seven people in California and Texas has been connected to the deadly flu that has broken out in Mexico, killing as many as 60 people, NBC News has confirmed.

    The strain has never been seen before and is raising fears of a possible pandemic across North America.

    The World Health Organization said it was concerned at what it called hundreds of "influenza-like" cases in Mexico, and also about the confirmed outbreak of the new strain of swine flu in the United States.

    Mexico canceled classes for millions of children in its sprawling capital city and surrounding area on Friday after authorities noticed a higher number of flu-like deaths than normal in recent weeks.

    "It is a virus that mutated from pigs and then at some point was transmitted to humans," Health Minister Jose Angel Cordova told the Televisa network.

    He said tests proved that 16 died from the new strain, and about 44 other suspected cases still being were still being tested. Mexico's Public Health Department put the total number of people sickened at around 943 nationwide.

    Cordova described a chilling new strain that had killed only people among the normally less-vulnerable young and mid-adult age range. One possibility is that the most vulnerable segments of the population — infants and the aged — had been vaccinated against other strains, and that those vaccines may be providing some protection.

    Dr. Anne Schuchat of the U.S. Centers for Disease Control and Prevention said "at this point, we do not have any confirmations of swine influenza in Mexico" of the kind that sickened those in California and Texas.

    The White House is closely following the outbreak and President Barack Obama has been informed, an administration official said on Friday.

    U.S. health experts said Thursday they expect to find more cases of the swine flu as they check people who had contact with the California and Texas patients. All of the seven U.S. victims recovered from the flu.

    Growing mystery
    The U.S. cases are a growing medical mystery because it's unclear how they caught the virus. The CDC said none of the seven people were in contact with pigs, which is how people usually catch swine flu. And only a few were in contact with each other.

    Still, health officials said it's not a cause for public alarm: The five in California and two in Texas all recovered, only one person was hospitalized and testing indicates some mainstream antiviral medications seem to work against the virus.

    Schuchat said officials believe it can spread human-to-human, which is unusual for a swine flu virus.

    The CDC is checking people who have been in contact with the seven confirmed cases, who all became ill between late March and mid-April.

    Because of intensive searching, it's likely health officials will find additional cases, said Schuchat, director of the CDC's National Center for Immunization and Respiratory Diseases.

    Worldwide, seasonal flu kills between 250,000 and 500,000 people in an average year.

    Unique combination virus
    CDC officials detected a virus with a unique combination of gene segments that have not been seen in people or pigs before. The bug contains human virus, avian virus from North America and pig viruses from North America, Europe and Asia.

    Health officials have seen mixes of bird, pig and human virus before, but never such an intercontinental combination with more than one pig virus in the mix.

    Scientists keep a close eye on flu viruses that emerge from pigs. The animals are considered particularly susceptible to both avian and human viruses and a likely place where the kind of genetic reassortment can take place that might lead to a new form of pandemic flu, said Dr. John Treanor, an infectious disease specialist at the University of Rochester Medical Center.

    The virus may be something completely new, or it may have been around for a while but was only detected now because of improved lab testing and disease surveillance, CDC officials said.

    The virus was first detected in two children in southern California — a 10-year-old boy in San Diego County and a 9-year-old girl in neighboring Imperial County.

    The cases were detected under unusual circumstances. One was seen at a Navy clinic that participates in a specialized disease detection network, and the other was caught through a specialized surveillance system set up in border communities, CDC officials said.

    On Thursday, investigators said they had discovered five more cases. That includes a father and his teenage daughter in San Diego County, a 41-year-old woman in Imperial County who was the only person hospitalized, and two 16-year-old boys who are friends and live in Guadalupe County, Texas, near San Antonio.

    Puzzling cases
    The Texas cases are especially puzzling. One of the California cases — the 10-year-old boy — traveled to Texas early this month, but that was to Dallas, about 270 miles northeast of San Antonio. He did not travel to the San Antonio area, Schuchat said.

    The two 16-year-olds had not traveled recently, Texas health officials said.

    The swine flu's symptoms are like those of the regular flu, mostly involving fever, cough and sore throat, though some of the seven also experienced vomiting and diarrhea.

    CDC are not calling it an outbreak, a term that suggests ongoing illnesses. It's not known if anyone is getting sick from the virus right now, CDC officials said.

    It's also not known if the seasonal flu vaccine that Americans got last fall and early this year protects against this type of virus. People should wash their hands and take other customary precautions, CDC officials said.

    The Mexican government warned people not to shake hands or kiss when greeting or share food, glasses or cutlery for fear of contracting the flu.

    Mexico City, one of the world's biggest cities and home to some 20 million people, was quieter than usual on Friday morning. Normally choking traffic was less chaotic in the absence of school buses and parents driving kids to school.

    Many people waiting to enter subway stations had their faces covered with surgical masks.


    URL: Outbreaks in Mexico, U.S. tied to new swine flu - Infectious diseases- msnbc.com
     

    suby

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    what I don't get is why they are making such a big deal out of it (everywhere in the media) but only seven people got sick in the US and they recovered?

    oh and it's nice to know the white house "is keeping a close eye on it" since there is so much that they could do to stop a pandemic if that's what this is...

    something to keep an eye on i guess
     

    Sailor

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    The thing that makes it worrisome is that it is a non natural combo of swine, avian, human flu, and that healthy young adults have died.
     

    smokingman

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    got a link for that story anywhere?
    It is live on cnn(loudobbs) right now.Not on the website yet.
    I should be updated here... CDC - Influenza (Flu) | Swine Influenza (Flu) Investigation in the morning.It is updated by the CDC daily.And like idiots they are keeping the border open.
    The CDC's Besser said it was probably too late to contain the outbreak. "There are things that we see that suggest that containment is not very likely," he said. Once it has spread beyond a limited geographical area it would be difficult to control.
    But there is no reason to avoid Mexico, CDC and the WHO said. "CDC is not recommending any additional recommendations for travelers to California, Texas and Mexico," Besser said.
    Deadly new flu strain erupts in Mexico, U.S.

    Did not Obama just come from Mexico the other day....?
     
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    suby

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    Ya I was actually monitoring that same website you linked. Hadn't heard about the NY thing though.

    It is live on cnn(loudobbs) right now.Not on the website yet.
    I should be updated here... CDC - Influenza (Flu) | Swine Influenza (Flu) Investigation in the morning.It is updated by the CDC daily.And like idiots they are keeping the border open.
    The CDC's Besser said it was probably too late to contain the outbreak. "There are things that we see that suggest that containment is not very likely," he said. Once it has spread beyond a limited geographical area it would be difficult to control.
    But there is no reason to avoid Mexico, CDC and the WHO said. "CDC is not recommending any additional recommendations for travelers to California, Texas and Mexico," Besser said.
    Deadly new flu strain erupts in Mexico, U.S.

    Did not Obama just come from Mexico the other day....?
     

    suby

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    Its early and with so many media outlets reporting slight variations of the story we'll just have to wait and see what happens I guess. Will be interesting to see what happens in Mexico when the WHO and CDC or whoever start moving into the region to do whatever they do. There are bound to be yet undiscovered cases with the state of health care in Mexico...

    Just another example of how the first intel report is usually flawed or flat out wrong.
     

    smokingman

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    What shocks me is they already gave up containment. Close the freaking border already!! Wonder if any of Obamas staff has tested positive?
     
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    Sailor

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    WHO considers raising global pandemic alert level
    HELEN BRANSWELL
    Canadian Press
    April 24, 2009 at 12:25 PM EDT

    TORONTO — Mexican authorities today confirmed they have found human cases of the same swine flu virus that has caused illness in the southwestern United States, a development that raises questions about whether the world is watching the start of a flu pandemic.
    The World Health Organization expressed serious concern, saying it is considering whether it needs to raise the global pandemic alert level and whether to launch an effort to try to contain the spread of a virus with possible pandemic potential.
    “We can't say for sure that either a phase change or a rapid containment operation will happen. But both have been considered and are being considered,” spokesman Gregory Hartl said from Geneva.
    “I still don't think we have enough information to be able to say that this is a pandemic or not. Because there are questions over transmissibility, let's say, of the virus. And we need to know more about how easily transmitted the virus is.”
    Videos

    00:00:00.000

    Heath officials concerned about mystery outbreak
    Mexican doctors have confirmed 137 cases of an unidentified respiratory illness in south and central Mexico, and Canadian health officials are concerned that it could spread
    Play Video



    Mr. Hartl said there have been no reports of infections in any other countries to date.
    Mexican authorities confirmed that samples tested both at the National Microbiology Laboratory in Winnipeg and the U.S. Centers for Disease Control tested positive for swine flu viruses. The unusual influenza A H1N1 viruses were first reported earlier this week, when the CDC announced it had found two human cases of infection with this never-before-seen virus.
    Though human H1N1 viruses have been circulating for decades, it is not clear how much protection previous infection with them would confer against a virus made up predominantly of swine flu genes. The virus also has some bird genes and one human gene.
    U.S. authorities have confirmed seven cases of swine flu infection in people in Southern California and Texas over the past few days. The seven range in age from nine to 54 years of age. All have recovered from the infection; one needed hospitalization.
    But the news coming out of Mexico paints a different story, with reports of a fairly high attack rate and more than 20 deaths.
    Reports suggest the majority of the cases are occurring in young, previously healthy adults in their mid 20s to mid 40s. There are said to have been over 800 cases so far, but it remains unclear if all of those people are sick with this virus or if other flu or respiratory viruses are also circulating and muddling the picture.
    Mr. Hartl said the WHO is sending staff to Mexico to help authorities there get a better handle on the scope of the problem. “We're extremely concerned because we're looking at five different influenza events which may or may not be connected,” he said, referring to California, Texas and three possibly linked outbreaks in Mexico.
    “But they are unusual events, either because of the time of the year that they happened and or because of the people that have been affected. This is a great concern to us and we have activated our strategic health operation centre which is a 24-hour around-the-clock command and control centre.”
    Canada and the United States have also launched their emergency control centres, signalling this is an event they want to track around the clock.
    The world is currently at level 3 of the WHO's six-rung pandemic alert ladder, because of ongoing sporadic cases of human infection with the H5N1 avian flu virus. Phase 3 means there are occasional human cases with a novel flu virus.
    WHO would need the advice of an expert panel to move up to Phase 4 or beyond. Phase 6 is a pandemic.
    Mr. Hartl's comments suggest that panel has been put on alert that they may be drawn together at any time.


    http://www.theglobeandmail.com/servl...rnational/home
     

    Sailor

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    The 20% Eurasian part of the virus appears to have originally come from Thailand.

    http://hisz.rsoe.hu/alertmap/woalert...t=dis&lang=eng

    Situation Update No. 16
    On 25.04.2009 at 03:58 GMT+2

    The national laboratory in Winnipeg has confirmed human swine influenza virus in clinical specimens sent from Mexico for testing, Canada's health minister said Friday. "Today we have received … results which confirm that the virus is human swine influenza,'' Leona Aglukkaq told a press conference in Ottawa.

    A handful of cases of flu-like illness in Canadian residents who recently returned from Mexico are being monitored, however, "there have been no confirmed cases of human swine influenza yet," said Dr. David Butler-Jones, Canada's chief public health officer.

    Mexico sent 51 specimens for testing to Canada's National Microbiology Laboratory on Wednesday. Sixteen positives of swine flu were found among the samples. Mexican Health Minister Jose Angel Cordova said Friday that 20 people were killed in the outbreak and 1,004 were infected throughout the country, prompting the World Health Organization to convene an emergency meeting Saturday.

    Officials closed schools, museums and libraries in Mexico City on Friday to limit spread of the virus. Dr. Rich Besser, acting head of the U.S. Centers for Disease Control, said early analysis of Mexican samples of the virus showed it is very similar to those responsible for eight American cases, one confirmed Friday. All the U.S. victims have recovered.

    A handful of cases of flu-like illness in Canadian residents who recently returned from Mexico are being monitored, however, "there have been no confirmed cases of human swine influenza yet," Dr. David Butler-Jones, Canada's chief public health officer, told the Ottawa press conference Friday.

    Canada is working with Mexican and U.S. health officials to confirm that the virus in both countries is linked and is in fact a new strain of influenza A H1N1 human swine virus, he added. "This is an interesting virus. It's a brand new virus, not only to humans but to the world," said Dr. Frank Plummer, scientific director of the Winnipeg lab.

    "About 80 per cent of the virus is highly related to a North American body of swine flu that's been around for a number of years, but about 20 per cent of it comes from an Eurasian variety of swine flu first seen in Thailand, so it's recombined to create something totally new. How it did that, where it did it, when it did it, I don't think we know yet."

    WHO spokesperson Gregory Hartl said the agency needs to determine whether the outbreaks constitute an international public health threat.

    Hartl also said 12 of 18 samples taken from victims in Mexico showed the virus had a genetic structure identical to that of the virus found in California earlier this week. But he said the agency needs more information before it changes its pandemic alert level, which currently stands at three on a scale of one to six.

    The virus was first reported earlier this week as U.S. health officials scrambled to deal with the diagnoses of seven people with the never-before-seen strain in Texas and California. The states share a border with Mexico not far from a town where two deaths were reported. Hartl said health officials are dealing with three separate events in Mexico, with most of the cases in and around the capital, Mexico City. Most of the cases have occurred in healthy young adults, he added. "Because these cases are not happening in the very old or the very young, which is normal with seasonal influenza, this is an unusual event and a cause for heightened concern," Hartl said in an interview from WHO headquarters in Geneva.

    In Canada, the advisory includes the same advice given to all travellers: Get a flu shot and take precautions such as covering coughs and staying home when sick. But it also gives locations in Mexico where cases of severe respiratory illness have occurred. However, tourists returning from Mexico who feel well don't need to see a doctor, Butler-Jones said.
     

    haldir

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    Containment is just racist talk. Viruses in Mexico should be allowed to come across the borders to. They are a net positive for the US. They are only taking the spots that our own viruses aren't willing or able to take.
     
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