Difference between H1N1 and H5N1

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  • Every now and then we heard from the news these two viruses H1N1 and H5N1. However, do not be confused about the differences between H1N1 and H5N1. To learn more about differentiation H1N1 and H5N1 here are some guidelines. Also, read more about causes, symptoms, preventions and treatments of these two viruses.
  • The H5N1 is commonly known as Bird flu virus that is highly contagious among birds while the H1N1 is commonly known as Swine flu virus or respiratory disease of pigs.

  • The H5N1 (Bird) flu virus is an influenza A virus subtype that is highly contagious among birds. Rare human infections with the H5N1 (Bird) flu virus have occurred. The majority of confirmed cases have occurred in Asia, Africa, the Pacific, Europe and the Near East. Currently, the United States has no confirmed human H5N1 (Bird) flu infections, but H5N1 (Bird) flu remains a serious concern with the potential to cause a deadly pandemic.

    The H1N1 (Swine) flu virus caused more illness in the 2009-2010 flu season in young people and pregnant women than is usual for prior flu seasons. Like seasonal flu, illness in people with H1N1 can vary from mild to severe.

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    source: flu.gov
  • H1N1 virus -– highly transmissible, but not terribly deadly -– and the H5N1 flu virus could create an easily transmissible, deadly scourge. The H5N1 virus has only sickened 440 people world-wide since 2003 and generally isn’t transmitted from one person to another. But it has killed 262, or about 60%, of those people, according to the World Health Organization.
H1N1 Swine Flu Causes, Symptoms And Treatments
  • H1N1 flu causes depend on perspective. Directly, it is the H1N1 swine flu virus that causes swine flu. The vast genetic variability of influenza viruses has made it difficult to give a name to this virus that is both scientifically correct and useful in general parlance. Both “h1n1” and “swine” describe a set of viruses which includes subsets. Neither is specific enough; neither is “h1n1 swine.” In July of 2009, the World Health Organization (WHO) announced that it would refer to the virus responsible for the current outbreak as “h1n1/09,” a term that is scientifically and genetically valid, and uses the year of the outbreak to further specify.

    Influenza viruses invade human cells, hijack their “machinery,” and use the cells to reproduce. Infected cells produce large amounts of specific chemicals that stimulate body’s immune response, which in turn causes many of the...

  • What treatment is available for swine flu (H1N1)?

    The best treatment for influenza infections in humans is prevention by vaccination. Work by several laboratories has recently produced vaccines. The first vaccine released in early October 2009 was a nasal spray vaccine. It is approved for use in healthy individuals ages 2 through 49. This vaccine consists of a live attenuated H1N1 virus and should not be used in anyone who is pregnant or immunocompromised. The injectable vaccine, made from killed H1N1, became available in the second week of October. This vaccine is approved for use in ages 6 months to the elderly, including pregnant females. Both of these vaccines have been approved by the CDC only after they had conducted clinical trials to prove that the vaccines were safe and effective. However, caregivers should be aware of the vaccine guidelines that come with the vaccines, as occasionally, the...

H5N1 Bird Flu Causes, Symptoms And Treatments
  • The symptoms of bird flu can be the result of tranmission virus from one person to another person. It can be transmitted by saliva, cough, blood, needles, sexual contact and many more.

  • The primary cause of Type A influenza subtype H5N1 is the result:

    of transmission of an infectious agent by another person by one or more of the following: saliva, air, cough, fecal-oral route, surfaces, blood, needles, blood transfusions, sexual contact, mother to fetus, etc.
  • What are Bird Flu Symptoms?

    The symptoms of bird flu have changed from year to year. Humans who have caught the bird flu from chickens start out with normal flu-like symptoms. Since it appears like the normal flu, it worsens to become a severe respiratory disease that has been fatal in a high percentage of cases.

    In February 2005, researchers in Vietnam reported human cases of bird flu in which the virus infected the brain and digestive tract of two children. Both died. These cases make it clear that bird flu in humans may not always look like typical cases of flu.

    No human cases of bird flu have been seen in the United States or North America. But as a precaution, the United States Center for Disease Control (CDC) is asking people who have traveled to East Asia to see a doctor if they develop flu-like symptoms. If...

  • Treatment

    Neuraminidase inhibitors are a class of drugs that includes zanamivir and oseltamivir, the latter being licensed for prophylaxis treatment in the United Kingdom. Oseltamivir inhibits the influenza virus from spreading inside the user's body. It is marketed by Roche as Tamiflu. This drug has become a focus for some governments and organizations trying to be seen as making preparations for a possible H5N1 pandemic. In August 2005, Roche agreed to donate three million courses of Tamiflu to the World Health Organization, to be deployed by the WHO to contain a pandemic in its region of origin. Although Tamiflu is patented, international law gives governments wide freedom to issue compulsory licenses for life-saving drugs.

    A second class of drugs, which include amantadine and rimantadine, target the M2 protein, but are ineffective against H5N1. Unlike zanamivir and oseltamivir,...

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