Swine Flu (AH1N1 Virus)

What is swine influenza?

Swine influenza (swine flu) is caused by type A influenza virus and gives pigs the flu. Swine flu viruses cause regular outbreaks of flu in pigs but death is infrequent. The viruses may circulate among pigs throughout the year, but most outbreaks occur during the late fall and winter months similar to outbreaks in humans. The classical swine flu virus (an influenza type A H1N1 virus) was first isolated from a pig in 1930.

How many swine flu viruses are there?

Like all flu viruses, swine flu viruses change constantly. Pigs can be infected by avian, human and swine influenza viruses. When influenza viruses from different species infect pigs, the viruses can reassort and new ones emerge that are a mix of swine, human and/or avian influenza viruses. Over the years, different variations of swine flu viruses have emerged. Right now, there are four main influenza type A virus subtypes that have been isolated in pigs: H1N1, H1N2, H3N2, and H3N1. However, most of the recently isolated influenza viruses from pigs have been H1N1 viruses.

Can humans catch swine flu?

Swine flu viruses do not normally infect humans. However, sporadic human infections with swine flu have occurred. Most commonly, these cases occur in persons with direct exposure to pigs, such as children near pigs at a fair or workers in the swine industry.

There have been documented cases of one person spreading swine flu to others. In 1988, an outbreak of apparent swine flu infection in pigs in Wisconsin resulted in multiple human infections, and although no community outbreak resulted, there was antibody evidence of virus transmission from the patient to health care workers who had close contact with the patient.

How common is swine flu infection in humans?

In the past, the U.S. Centers for Disease Control and Prevention received reports of about one human swine flu virus infection every one to two years in the U.S., but from December 2005 through February 2009, 12 cases of human infection with swine flu have been reported. Five of the 12 cases occurred in patients who had direct exposure to pigs, six in patients reported being near pigs, and the exposure in one case was unknown.

What are the symptoms of swine flu in humans?

The symptoms of swine flu in people are expected to be similar to the symptoms of regular human seasonal influenza and include fever, lethargy, lack of appetite and coughing. Some people with swine flu also have reported runny nose, sore throat, nausea, vomiting and diarrhea.

Can people catch swine flu from eating pork?

No. Swine flu viruses are not transmitted by food. You cannot get swine flu from eating pork or pork products.

How does swine flu spread?

Influenza viruses can be directly transmitted from pigs to people and from people to pigs. Human infection with swine flu viruses are most likely to occur when people are in close proximity to infected pigs, such as in pig barns and livestock exhibits at fairs.

Human-to-human transmission of swine flu can also occur. This is thought to occur in the same way as seasonal flu occurs in people, which is mainly person-to-person transmission through coughing or sneezing of people infected with the flu virus. People may become infected by touching something with flu viruses on it and then touching their mouth or nose.

What is known about human-to-human spread of swine flu?

In September 1988, a healthy 32-year-old pregnant woman was hospitalized for pneumonia and died eight days later. A swine H1N1 flu virus was detected. Four days before getting sick, she had visited a county fair swine exhibition where there was widespread flu-like illness among the pigs.

In follow-up studies, 76 per cent of swine exhibitors tested had antibody evidence of swine flu infection but no serious illnesses were detected among this group. Additional studies suggest that one to three health care personnel who had contact with the patient developed mild influenza-like illnesses with antibody evidence of swine flu infection.

How are human infections with swine flu diagnosed?

To diagnose swine influenza A infection, a respiratory specimen is ideally collected within the first four to five days of illness and sent to the CDC for testing.

What medications are available to treat humans with swine flu?

Four antiviral drugs are licensed for use in the United States: amantadine, rimantadine, oseltamivir and zanamivir. While most swine flu viruses have been susceptible to all four drugs, the most recent seven swine flu viruses isolated from humans are resistant to amantadine and rimantadine. Right now, the CDC recommends oseltamivir or zanamivir for the treatment and/or prevention of infection with swine flu viruses.

What other examples of swine flu outbreaks are there?

The most well known outbreak of swine flu was 1976 one among soldiers in Fort Dix, N.J. The virus caused illnesses in at least four soldiers and one death; all were previously healthy. The virus was transmitted in close contact at a basic training camp. It was thought to have circulated for a month and disappeared. The source of the virus, the exact time of its introduction into Fort Dix and factors limiting its spread and duration are unknown. The outbreak may have been caused by introduction of an animal virus into a stressed human population in close contact during the winter.

Source: U.S. Centers for Disease Control and Prevention


  1. បូរាណ
    April 28, 2009 at 11:32 am

    អូយ គួរឲ្យខ្លាចណាស់…

    • rommer
      August 5, 2009 at 4:05 pm

      AH1N1 VIRUS is dangerous but for me the most dangerous deasease……
      is the sars spread in november 2002…….

  2. Ryan
    May 8, 2009 at 3:06 am

    people must be aware and respond to the situation that we have right now. we can prevent tis by following the things that is told by authorities. in that very simple way we can contribute in stopping the infection to others.

  3. Sheila D. Faciol
    May 11, 2009 at 8:10 am

    “An OuNce of prEvEnTioN won’t HURT!”.., we tend to ignore things specially when we are not directly affected by it. When will we start minding things? Let’s not wait for it to start clogging up our LIFE LINE…

  4. melissa
    May 12, 2009 at 3:23 am

    why is this happing to us????????????? why did they had to cancel show grounds in Belize i really wanted to go Show Grounds in Belize

  5. May 26, 2009 at 10:49 am

    D5swu7 mapeamubbkaj, [url=http://fzkjcfmuuldl.com/]fzkjcfmuuldl[/url], [link=http://bwjtwrfvdyhi.com/]bwjtwrfvdyhi[/link], http://sczrymlyszwi.com/

  6. Bernadette
    May 27, 2009 at 10:02 am

    >> That was so sad.. I am so scared about this virus and it’s now spreading.. Please tell me, how can we prevent this?!

  7. dang
    May 27, 2009 at 5:26 pm

    these viruses evolve because of too much antibiotics in the feeds of pigs thus these viruses develop resistance and alas they mutate.these problems are the price of too much industrialization and ballooning of populations.

    sad to say we have done little to avert this soon to be catastrophic epidemic..

    • Bernadette
      November 7, 2009 at 12:32 am

      antibiotics are not used for viruses, only for bacterial infections!

  8. hubby..
    June 1, 2009 at 6:29 pm

    how can we stop this virus?do we have a chance to be okay if we have this virus?

  9. June 2, 2009 at 8:40 pm

    hello sa lahat g ag reresearch

  10. June 2, 2009 at 8:41 pm

    mark vinson A. cortez II-yakal

  11. kelvin culaway
    June 3, 2009 at 3:48 pm

    ang sama-sama ng swine flu sa tao!!!!!!!!!!!

  12. June 3, 2009 at 5:27 pm

    I hope that the goverment will organize about the problem AH

  13. lea ammogawen
    June 4, 2009 at 9:52 pm

    is there any vaccine for this.

  14. Ronnel
    June 6, 2009 at 3:13 pm

    How does this flu causes death to humans?

    June 8, 2009 at 2:43 pm

    why is it that this virus can only caught in pig? in many animals why is it that it can only be found in pig?

  16. reggie
    June 9, 2009 at 2:54 pm

    smart informations…

  17. JEFF
    June 10, 2009 at 7:55 pm

    why we suffer like this? hope w’ll be okay.

  18. kabua
    June 15, 2009 at 3:15 pm


  19. June 15, 2009 at 6:36 pm

    why there are a virus like this????

  20. jonas
    June 15, 2009 at 10:49 pm

    i believe that this virus occurs only with human and pigs because the type of body that humans have is similar to that of the pig.

  21. June 16, 2009 at 12:44 pm

    This is scary, i am having some colds and cough for three days now and it somehow worries me. I am just that I won’t get a fever because it that happens then this must be taken seriously already. I don’t want to get sick!!!!

  22. Elang
    June 16, 2009 at 9:50 pm

    Oh lord God! Pls pray for our safetiness! May good health b with us always! Hmhm ang hirap magkasakt! Pray n lng tayo!

  23. Bano, Kristoffer L.
    June 17, 2009 at 10:57 am

    in my own opinion like other says AH1N1 is virus infection therefore we can prevent the spread of this alarming phenomenon by simply starting it with our own self care, by cleaning our surroundings, proper hand washing, take vit.c to boost our immune system, and most of all visit the nearby clinics to avail a prophylaxis like oseltamivir, and zanamivir this drugs are choices used by the US also available the amantadine, and rimantadine but the latter two were prefered to use

  24. June 17, 2009 at 12:42 pm


  25. June 17, 2009 at 12:43 pm


  26. john2x
    June 17, 2009 at 7:46 pm


  27. BARBIE
    June 19, 2009 at 5:05 am


  28. Ogag
    June 19, 2009 at 11:40 am

    Tang ina ng swine flu na yan shet

  29. haydencio
    June 20, 2009 at 11:08 am

    unta tanang tao naa aning virus pra lingaw

  30. June 20, 2009 at 3:14 pm

    i love you AH1N1 LOLxZ!

  31. June 20, 2009 at 3:23 pm

    i love it ^_^

  32. June 20, 2009 at 3:24 pm

    hehehehehehehe pra walang pasok for 1 month dba?? 😛




  33. jojie gonzales
    June 23, 2009 at 6:41 pm

    how i wish mtgil n yang AH1N1 n yan dvah??!!!layuan nlng nten ung mga taong my ubo,sipon pra mka assure dvah?!!

  34. June 24, 2009 at 4:04 pm

    you suck

  35. greenmind
    June 26, 2009 at 3:25 pm

    ask ko lang, how long does it take before the symptoms manifest?

  36. maricor
    June 26, 2009 at 3:29 pm

    kapag adik at lasengga ba di tinatablan ng A h1n1?

    • edmon pierre r. cari-an
      July 7, 2009 at 9:48 am

      wahahaha!!! baka indi^^

  37. អគ្គលីបុត្រ
    June 29, 2009 at 9:57 am

    Wow what is a hot topic!
    ស៊ីម៉ាដាម!! ប្លក់ឡូវល្បីផស់គេ!

    • June 30, 2009 at 3:17 pm

      :D​ញុំអត់ដឹងដែរចេះតា ផូសៗទៅហ្នឹង! សុខសប្បាយទេហី! ខានជួកគ្នាយូរហើយនាក…..​ចាំង៉ៃណាមួយជួបគ្នាម៉ាដងមើល៍…. 😀

  38. អគ្គលីបុត្រ
    June 30, 2009 at 4:19 pm

    ហេ!! មានអី តោះ! ង៉ៃសៅរ៏ទី៥ កក្កដា ២០០៩ វេលាម៉ោង ១២កន្លះថ្ងៃត្រង់! នៅបឹងកក់ ទៅក្លែម​ស្រាតាប៉ែ ហើយហិតក្លិន ទឹកស្អុយ​ឲ្យហើយ! ព្រោះ​តិច​ទៀត លែនបានហិតហើយ ដោយសារគេចាក់ដីលប់អស់!!!
    ទៅអត់បើទៅ ខលមកខ្ញុំ ការេដប់គត់ ដប់ជិត ក្បាលរុយ សេវា២៤ម៉ោង!

    • July 2, 2009 at 4:41 pm

      ហា! លឿនម៉េះ! ង៉ៃសៅរ៍នេះទៅអត់បានផង ព្រោះទៅទទួលម៉ែម៉ោពីខេត្តហ្នឹងណា! ហើយមួយទៀតដឹងស្រាប់ហើយ រាល់ង៉ៃ ៥បើកលុយ តែទល់តាល្ងាចបានបើក។​ង៉ៃនុងឯអត់បានបើកអាដែល ព្រោះល្ងាចអត់​ទៅធ្វើការផង 😦 យាយឲ្យចំទៅអត់លុយតាម៉ង់ហ្នឹង!
      ចេះទៅ! ចាំឯង ហ្វីចាំជួបគ្នាម៉ាដងស៊ីផឹកឲ្យណាណីម្តង(ដូចលើកមុនចឹង បុត្រឯ​និងពួកម៉ាកផ្សេងទៀត ផឹក អាបេសេ ញុំផឹកទឹកក្រូចទៀត​ហាហាហា…)​OK te? 😀

  39. អគ្គលីបុត្រ
    July 3, 2009 at 9:02 am

    យ៉ាប់​ប៉ាដោយ! បើកយឺតម្ល៉េះ? ខ្ញុំបើកតាំងពីង៉ៃ ២៩ ហ្ន៎!!
    ចាំលើកក្រោយក៏បានដែរ តែអត់មាន មកផឹក​កូកា ទឹកក្រូច​ អីទៀតទេ! ផឹក​ប៊ីយៀរ នឹងគេខ្លះ​ទៅ ក្រែង​រក​ស្រីស្នេហ៍បាន​ឆាប់ៗៗ

  40. July 5, 2009 at 5:15 pm


  41. edmon pierre r. cari-an
    July 7, 2009 at 9:47 am

    i have body pains since yesterday, and i think i’ll be having flu too…ho wwould i know if i already have one?

    • July 9, 2009 at 10:51 am

      The best way you should do is go to see the doctor. 😀

  42. អគ្គលីបុត្រ
    July 14, 2009 at 2:46 pm

    eat doctor?

    • BonZai
      July 25, 2009 at 7:46 pm

      amaw kaba wag kang patawa tol hinde nakaka biro itoh kasi KSP kalang wala ka kasing pamilya surot ka sa lipunan !!!.. alam mo bayan

  43. July 15, 2009 at 6:59 pm

    wow na man

    pra sa project ko to .,,.,.,


  44. July 16, 2009 at 12:23 pm

    omg… i have already undergone the symptoms, i had diarrhea, i am coughing right now, i did not yet have fever and flu but i feeel like i am having ah1n1, fuck… i am taking up bioflu and carbocisteine, i have runny nose and i am nauseaous, nahihilo ako… goddamnit! but i still have aappetite and i am stil strong anough to go out and surf the net…

  45. sharmain
    July 18, 2009 at 4:17 pm

    people should be extra care on their env’t especially of the people around them & also do the proper hygiene..malay mu yang kausap mu is carrier na pala of the said virus diba?

  46. BonZai
    July 25, 2009 at 7:43 pm

    Fuck da Virus in the Fucking world!!!!!

  47. belle michelle
    August 18, 2009 at 4:44 pm

    can you give more information about A H1N1 virus because some many students in our school is researching about it.it is only a suggestion

  48. June 23, 2010 at 4:32 am

    people must be aware and respond to the situation that we have right now.

  49. emo
    September 6, 2010 at 5:47 pm

    hay!!!!!!!!!!!! super du per talaga hehehe
    asss ko p nmn toh

  50. emo
    September 6, 2010 at 5:48 pm

    hmfffff heheheeheheeh

  51. emo
    September 6, 2010 at 5:51 pm

    😦 🙂 😀 B)

  1. May 13, 2009 at 11:06 am

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