Docstoc

SWINE FLU

Document Sample
SWINE FLU Powered By Docstoc
					     SWINE FLU
        Dr.T.V.Rao MD
     Professor of Microbiology
    Sri Deva Raj Urs University
    Medical College, Kolar India
         DISTRIBUTED BY
www.medicalppt.blogspot.com

             www.medicalppt.blogspot.com
                FOR MORE LECTURES
          What is Swine Flu
   Swine influenza virus (referred to
    as SIV) refers to influenza cases that
    are caused by Orthomyxovirus
    endemic to pig populations. SIV
    strains isolated to date have been
    classified either as Influenza(virus C
    or one of the various subtypes of the
    genus Influenza virus A)

                 www.medicalppt.blogspot.com
                    FOR MORE LECTURES
      Different Strains circulate
             Periodically
   In the United States the H1N1
    subtype was exclusively prevalent
    among swine populations before
    1998; however, since late August
    1998, H3N2 subtypes have been
    isolated from pigs. As of 2004, H3N2
    virus isolates in US swine and turkey
    stocks were triple
    reassortants, containing genes from
    human (HA, NA, and PB1), swine
                 www.medicalppt.blogspot.com
                    FOR MORE LECTURES
MAP of H1 N1 Swine Flu




       www.medicalppt.blogspot.com
          FOR MORE LECTURES
         Swine Influenza (Flu)

   Swine Influenza (swine flu) is a
    respiratory disease of pigs caused by
    type A influenza that regularly cause
    outbreaks of influenza among pigs.
    Swine flu viruses do not normally
    infect humans, however, human
    infections with swine flu do occur,
    and cases of human-to-human
    spread of swine flu viruses has been
    documented.  www.medicalppt.blogspot.com
                    FOR MORE LECTURES
Pigs can harbour influenza viruses
    can be adapted to Humans




            www.medicalppt.blogspot.com
               FOR MORE LECTURES
     Swine Flu-Present Status
   From December 2005 through
    February 2009, a total of 12 human
    infections with swine influenza were
    reported from 10 states in the United
    States. Since March 2009, a number
    of confirmed human cases of a new
    strain of swine influenza A (H1N1)
    virus infection in the U.S. and
    internationally have been identified.
    An investigation into these cases is
                 www.medicalppt.blogspot.com
                    FOR MORE LECTURES
            Swine Flu 2009
   In late March and early April 2009,
    cases of human infection with swine
    influenza A (H1N1) viruses were first
    reported in Southern California and
    near San Antonio, Texas. Other U.S.
    states have reported cases of swine
    flu infection in humans and cases
    have been reported internationally as
    well.
                 www.medicalppt.blogspot.com
                    FOR MORE LECTURES
     Update - Status Swine Flu
   The United States Government has
    reported seven confirmed human
    cases of Swine Influenza A/H1N1 in
    the USA (five in California and two in
    Texas) and nine suspect cases. All
    seven confirmed cases had mild
    Influenza-Like Illness (ILI), with only
    one requiring brief hospitalization.
    No deaths have been reported.
                 www.medicalppt.blogspot.com
                    FOR MORE LECTURES
         Swine Flu in Mexico
   In the Federal District of
    Mexico, surveillance began picking
    up cases of ILI starting 18 March.
    The number of cases has risen
    steadily through April and as of 23
    April there are now more than 854
    cases of pneumonia from the capital.
    Of those, 59 have died. In San Luis
    Potosi, in central Mexico, 24 cases of
    ILI, with three deaths, have been
                 www.medicalppt.blogspot.com
                    FOR MORE LECTURES
         Swine Flu and Virus
   Swine Influenza (swine flu) is a
    respiratory disease of pigs caused by type
    A influenza virus that regularly causes
    outbreaks of influenza in pigs. Swine flu
    viruses cause high levels of illness and low
    death rates in pigs. Swine influenza
    viruses may circulate among swine
    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
                   www.medicalppt.blogspot.com

    type A H1N1 virus) was first isolated from
                      FOR MORE LECTURES
        Cause by Reassortment of
            different strains
   Like all influenza
    viruses, swine flu
    viruses change
    constantly. Pigs can
    be infected by avian
    influenza and human
    influenza viruses as
    well as swine influenza
    viruses. When
    influenza viruses from
    different species infect
    pigs, the viruses can
    reassort (i.e. swap
    genes) and new
    viruses that are a mix
    of swine, human
    and/or avian influenza LECTURES
                       www.medicalppt.blogspot.com
                          FOR MORE

    viruses can emerge
Swine Flu differs from Human
             Flu
   The H1N1 swine flu
    viruses are
    antigenically very
    different from
    human H1N1
    viruses and,
    therefore, vaccines
    for human
    seasonal flu would
    not provide
    protection from
                  www.medicalppt.blogspot.com

    H1N1 swine flu   FOR MORE LECTURES
Out breaks among Pigs
                           Outbreaks among pigs
                            normally occur in
                            colder weather
                            months (late fall and
                            winter) and
                            sometimes with the
                            introduction of new
                            pigs into susceptible
                            herds. Studies have
                            shown that the swine
                            flu H1N1 is common
                            throughout pig
                            populations
                            worldwide, with 25
                            percent of animals
                            showing antibody
                            evidence of infection.
       www.medicalppt.blogspot.com
          FOR MORE LECTURES
Present Swine Flu strains
                           At this time, 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
        www.medicalppt.blogspot.com
           FOR MORE LECTURES
         How man is exposed
   Most commonly,
    these cases occur
    in persons with
    direct exposure to
    pigs (e.g. children
    near pigs at a fair
    or workers in the
    swine industry). In
    addition, there
    have been
    documented cases
    of one person
    spreading swine flu
                  www.medicalppt.blogspot.com
                     FOR MORE LECTURES
How Swine Flu presents 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
        www.medicalppt.blogspot.com
           FOR MORE LECTURES
                             throat, nausea, vomiti
     Is the eating Pork infects ?
   No. Swine influenza
    viruses are not
    transmitted by food.
    You can not get swine
    influenza from eating
    pork or pork products.
    Eating properly
    handled and cooked
    pork and pork
    products is safe.
    Cooking pork to an
    internal temperature
    of 160°F kills the
    swine flu virus as it
    does other bacteria FOR MORE LECTURES
                       www.medicalppt.blogspot.com


    and viruses
Close proximity with PIGS
  spread the Infections
                            Influenza viruses can
                             be directly transmitted
                             from pigs to people
                             and from people to
                             pigs. Human infection
                             with flu viruses from
                             pigs are most likely to
                             occur when people are
                             in close proximity to
                             infected pigs, such as
                             in pig barns and
                             livestock exhibits
                             housing pigs at fairs.
                             Human-to-human
                             transmission of swine
        www.medicalppt.blogspot.com
           FOR MORE LECTURES

                             flu can also occur.
    How Swine flu spread among
               Pigs
   Swine flu viruses are
    thought to be spread
    mostly through close
    contact among pigs
    and possibly from
    contaminated objects
    moving between
    infected and
    uninfected pigs. Herds
    with continuous swine
    flu infections and
    herds that are
    vaccinated against
    swine flu may have
    sporadic disease, or
    may show only mild or
    no symptoms of www.medicalppt.blogspot.com
                        FOR MORE LECTURES

    infection.
     Seek emergency medical care.
           IF - in Children
   In children emergency warning signs that
    need urgent medical attention include:
   Fast breathing or trouble breathing Bluish
    skin color.Not drinking enough fluids
   Not waking up or not interacting
   Being so irritable that the child does not
    want to be held
   Flu-like symptoms improve but then
    return with fever and worse cough
   Fever with a rash
                   www.medicalppt.blogspot.com
                      FOR MORE LECTURES
Adults Need attention if Present
             with
   Difficulty breathing or shortness of
    breath
   Pain or pressure in the chest or
    abdomen
   Sudden dizziness
   Confusion
   Severe or persistent vomiting

                 www.medicalppt.blogspot.com
                    FOR MORE LECTURES
                           Diagnosis
   To diagnose swine
    influenza A
    infection, a respiratory
    specimen would
    generally need to be
    collected within the
    first 4 to 5 days of
    illness (when an
    infected person is
    most likely to be
    shedding virus).
    However, some
    persons, especially
    children, may shed
    virus for 10 days or
    longer. Identification
    as a swine flu     www.medicalppt.blogspot.com
                          FOR MORE LECTURES

    influenza A virus
CDC helps in Diagnosis
                          Requires sending
                           the specimen to
                           CDC for laboratory
                           testing as many
                           laboratories in
                           Developing world
                           do not have
                           facilities



       www.medicalppt.blogspot.com
          FOR MORE LECTURES
      Drugs which are effective in
              Swine Flu
   There are four
    different antiviral
    drugs that are
    licensed for use in the
    US for the treatment
    of influenza:
    Amantidine, rimant
    adine, oseltamivir
    and zanamivir. While
    most swine influenza
    viruses have been
    susceptible to all four
    drugs
                     www.medicalppt.blogspot.com
                        FOR MORE LECTURES
Drugs proved resistant at
        Present
                           Most recent swine
                            influenza viruses
                            isolated from
                            humans are
                            resistant to
                            Amantidine and
                            Rimantadine




        www.medicalppt.blogspot.com
           FOR MORE LECTURES
    CDC recommends at Present
   CDC recommends
    the use of
    oseltamivir or
    zanamivir for the
    treatment and/or
    prevention of
    infection with
    swine influenza
    viruses

                 www.medicalppt.blogspot.com
                    FOR MORE LECTURES
    How long can an infected person
      spread swine flu to others?
   People with swine influenza virus
    infection should be considered
    potentially contagious as long as
    they are symptomatic and possible
    for up to 7 days following illness
    onset. Children, especially younger
    children, might potentially be
    contagious for longer periods.

                 www.medicalppt.blogspot.com
                    FOR MORE LECTURES
      How long can viruses live
         outside the body?
   We know that some viruses and
    bacteria can live 2 hours or longer on
    surfaces like cafeteria tables,
    doorknobs, and desks. Frequent
    hand washing will help you reduce
    the chance of getting contamination
    from these common surfaces.


                 www.medicalppt.blogspot.com
                    FOR MORE LECTURES
No Vaccines to Humans
 But available to PIGS
                          Vaccines are
                           available to be
                           given to pigs to
                           prevent swine
                           influenza. There is
                           no vaccine to
                           protect humans
                           from swine flu.
                           The seasonal
                           influenza vaccine
                           will likely help
                           provide partial
                           protection against
       www.medicalppt.blogspot.com
          FOR MORE LECTURES
Avoid close contact

                        Avoid close contact
                         with people who
                         are sick. When you
                         are sick, keep your
                         distance from
                         others to protect
                         them from getting
                         sick too.
                        Aerosols spread
                         the virus in any
                         environment
     www.medicalppt.blogspot.com
        FOR MORE LECTURES
    Stay home when you are sick.

   If possible, stay
    home from work,
    school, and
    errands when you
    are sick. You will
    help prevent others
    from catching your
    illness.



                  www.medicalppt.blogspot.com
                     FOR MORE LECTURES
Cover your mouth and nose.

                            Cover your mouth
                             and nose with a
                             tissue when
                             coughing or
                             sneezing. It may
                             prevent those
                             around you from
                             getting sick



         www.medicalppt.blogspot.com
            FOR MORE LECTURES
          Clean your hands.

   Washing your
    hands often will
    help protect you
    from germs.
   Hand washing
    proved to be best
    procedure in
    prevention of
    Majority of
    Communicable
    diseases.     www.medicalppt.blogspot.com
                     FOR MORE LECTURES
Avoid touching your eyes, nose or
             mouth.

                              Germs are often
                               spread when a
                               person touches
                               something that is
                               contaminated with
                               germs and then
                               touches his or her
                               eyes, nose, or
                               mouth.

           www.medicalppt.blogspot.com
              FOR MORE LECTURES
      Practice other good health
                habits.
   Get plenty of sleep,
    be physically
    active, manage
    your stress, drink
    plenty of fluids,
    and eat nutritious.
   Unnecessary
    Migration of people
    from epidemic and
    endemic areas to
    be reduced.    www.medicalppt.blogspot.com
                      FOR MORE LECTURES
Is eating Pork meat safe during
           Epidemics
                               Swine influenza
                               viruses are not
                               spread by food.
                               You cannot get
                               swine influenza
                               from eating pork or
                               pork products.
                               Eating properly
                               handled and
                               cooked pork
                               products is safe.
           www.medicalppt.blogspot.com
              FOR MORE LECTURES
Healthy Habits reduces the
         Attacks




         www.medicalppt.blogspot.com
            FOR MORE LECTURES
Simple measures carry get good
          Benefits
   Cover your
    mouth and nose.
    Use a tissue when
    you cough or
    sneeze and drop it
    in the trash. If you
    don’t have a
    tissue, cover your
    mouth and nose as
    best you can.
                   www.medicalppt.blogspot.com
                      FOR MORE LECTURES
Clean Hands saves you
                          Clean your hands
                           often. Clean your
                           hands every time
                           you cough or
                           sneeze. Hand
                           washing stops
                           germs. Alcohol-
                           based gels and
                           wipes also work
                           well.
       www.medicalppt.blogspot.com
          FOR MORE LECTURES
Cartoonists Imagination on
        Swine Flu




        www.medicalppt.blogspot.com
           FOR MORE LECTURES
            Visit for Updates
                     CDC
   CDC ( Center of
    Disease) control
    updates the
    current
    information.
   The topic made as
    per guidelines of
    CDC

                 www.medicalppt.blogspot.com
                    FOR MORE LECTURES
 Created for Awarness
     on Swine Flu
         Dr.T.V.Rao MD
              Email
     doctortvrao@gmail.com
        DISTRIBUTED BY
www.medicalppt.blogspot.com


          www.medicalppt.blogspot.com
             FOR MORE LECTURES

				
DOCUMENT INFO
Shared By:
Tags: swine
Stats:
views:59
posted:2/18/2010
language:English
pages:43
Description: which contains the helath tips and some desies their precautionary measures.
sreekanth reddy sreekanth reddy Software Engineer englishmoviedl.blogspot.com
About i am peaceful and kind person