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    BASICS OF HIV

    Refresher Course of NSS Programme coordinators27-07-2010

    Wakar Amin

    Faculty-In-charge

    Global Fund to fight AIDS,TB and Malaria (GFATM)

    Project,.Department of Social work

    BPSM Women University Sonipat Haryana -INDIA

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    What is HIV?

    Hhuman

    Iimmunodeficiency

    Vvirus

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    What is AIDS?AAcquired(not born with)

    IImmune

    (bodys defence system)

    DDeficiency(not working properly)

    SSyndrome(a group of signs and symptoms)

    Transmitted from person to

    person.

    It affects the bodys immune

    system, the part of the body which

    usually works to fight off germssuch as bacteria and viruses.

    Malfunctioning of the bodys

    immune system

    Someone with AIDS may

    experience a wide range of

    different diseases and

    opportunistic infections.

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    The difference between HIV and AIDS

    HIV causes AIDS

    HIV is a virus and AIDS is a disease

    AIDSdeficiency in the bodys defence mechanism

    or immune system

    AIDS is acquired, not hereditary

    HIV develops into AIDS depending on the bodys

    defence mechanism

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    What is the immune system? Immune system defends the body.

    White blood cells (WBCs) are the most important partof this immune system.

    WBCs fight and destroy bacteria, fungi and viruses

    that may enter the body

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    How does HIV weaken the immune system?

    HIV enters the body.

    WBCs are attacked by HIV.

    The virus multiplies inside WBCs and infects otherWBCs.

    Infected WBCs are eventually destroyed.

    Leads to a reduction in the number of WBCs.

    Ultimately leads to greatly reduced immunity.

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    Adults and children estimated to be livingAdults and children estimated to be living

    with HIV as of endwith HIV as of end 20082008

    Total: 40.3 (36.7 47.1) million

    Western & CentralEurope

    720 000720 000[[570 000570 000 890 000890 000]]

    North Africa & Middle East510 000510 000

    [[230 000230 000 11..44 million]million]

    Sub-Saharan Africa

    25.8 million25.8 million[23.8[23.8 28.9 million]28.9 million]

    Eastern Europe& Central Asia

    1.6 million1.6 million[990 000[990 000 2.3 million]2.3 million]

    South & South-East Asia

    7.4 million7.4 million[4.5[4.5 11.0 million]11.0 million]

    Oceania

    74 00074 000[45 000[45 000 120 000]120 000]

    North America

    1.2 million1.2 million[650 000[650 000 1.8 million]1.8 million]

    Caribbean300 000300 000

    [[200 000200 000 510 000510 000]]

    Latin America

    1.8 million1.8 million[1.4[1.4 2.4 million]2.4 million]

    East Asia

    870 000870 000[[440 000440 000 11..44 million]million]

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    Estimated number of adults and childrenEstimated number of adults and children

    newly infected with HIV during 2008newly infected with HIV during 2008

    Total: 4.9 Total: 4.9 T((4.3 6.6)

    million

    Western & CentralEurope

    22 00022 000[[15 00015 000 39 00039 000]]

    North Africa & Middle East67 00067 000

    [35 000[35 000 200 000]200 000]

    Sub-Saharan Africa

    3.2 million3.2 million[2.8[2.8 3.9 million]3.9 million]

    Eastern Europe& Central Asia

    270 000270 000[140 000[140 000 610 000]610 000]

    East Asia

    140 000140 000[42 000[42 000 390 000]390 000]South& South-East Asia

    990 000990 000[480 000[480 000 2.4 million]2.4 million]

    Oceania

    82008200[[24002400 25 00025 000]]

    North America

    43 00043 000[15 000[15 000 120 000]120 000]

    Caribbean

    30 00030 000[[17 00017 000 71 00071 000]]

    Latin America

    200 000200 000[[130 000130 000 360 000360 000]]

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    Estimated adult and child deathsEstimated adult and child deaths

    from AIDS during 2007from AIDS during 2007

    Western & CentralEurope

    12 00012 000[

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    UNAIDS / WHO HIV Epidemic

    Definitions Generalised

    > 1% in the general population.

    Concentrated

    < 1% in the general population, over 5%

    in high risk groups.

    Low-level

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    NATURE OF HIV INFECTIONIN THE COMMUNITY

    Asymptomatic

    Symptomatic

    Unknown asymptomatic

    Knownasymtomatic

    Known disclosed

    Known undisclosed

    Unknown

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    Efficiency of transmission of

    HIV Sexual route: 0.01 1%

    Blood and blood products:

    > 90%

    Sharing of needles: 3 5%

    Percutaneous exposure:0.4%

    Mucocutaneous exposure:0.05%

    Mother to child: 25 30%

    71

    16

    4.2

    4.5

    4.3

    Sexual Blood & Blood Products

    Injecting Drug Users Perinatal Transmission

    OTHERS ( not specified)

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    Activities that do not allow HIV

    Transmission: Casual contacts (sharing food, shaking hands,

    hugging or kissing, coughing, sneezing, using

    public phone, visiting a hospital). Feces, urine, saliva, sweat, tears.

    Donating blood.

    Sharing toilets.

    Insect bites.

    Swimming pools.

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    General Population GeneralPopulation

    Risk Group

    Population

    Bridge

    Population

    Dynamics of HIV Transmission

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    High Risks Behaviors forHIV Transmission

    Sexual behaviours: Lack of consistent condom use.

    Having multiple sexual partners. Frequent visits to commercial sex workers.

    Drug taking behaviours: Sharing of injecting equipment among IDUs.

    Inadequate cleaning of injecting equipmentbefore sharing.

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    Cellular Targets of HIV Infection

    Main targets: CD4+ T lymphocytes.

    Monocytes and macrophages.

    Virus transfers RNA into human cells: Integrates into the genetic material.

    Replicates. Production of antibodies.

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    Intervention Strategies to

    control HIV/AIDS in the country

    Targeted interventions in the high risk groups CSW, IVD groups, MSM

    Interventions in the bridge population STD Clinic attendants, Truck drivers, Factory workers etc

    Interventions in the general population Blood safety,School Health programs

    Cross cutting interventions STD Care,Condom promotion, IEC activities

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    Targetedinterventions

    STDtreatment

    Condom

    programming

    Multi-sectoralCollaboration

    Public private

    partnerships

    Holistic IEC andsocial

    mobilisation

    Safe Blood

    Voluntary

    counselling and

    testing

    AIDS Vaccine

    Initiative

    Sensitising youth

    and /adolescents

    Workplace

    interventions

    Prevention ofParentto Child

    Transmission

    Management ofHIV-

    TB Co-Infection

    Treatment of

    Opportunistic

    Infections

    PilotingARTwith

    effectfromApril

    2004

    Post Exposure

    Prophylaxis

    PREVENTION

    High risk

    populations

    Lowrisk

    populationsLowcostcare &

    support

    CARE SURVEILLANCE

    Evidencebased

    planning

    Annual SentinelSurveillance

    AIDS Case

    Detection

    Mapping ofhigh

    riskgroups

    BehaviouralSurveillance

    MajorComponents ofNACP

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    Current Status - Summary

    There is no room for complacency STD Care

    More focus on high prevalent zones in vulnerablestates

    Improved monitoring of the programs and make

    corrections based on evidence

    Focus on IV drug abuse epidemic

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    What is Comprehensive

    HIV/AIDS Care ? Clinical and nursing care.

    Psychosocial support and counselling.

    Economic and employment support. Housing.

    Legal assistance.

    Care and support for orphans and widows.

    Training on care and support for care givers.

    Planning and Implementing HIV/AIDS Care Programmes: A step-by-step

    approach. WHO SEARO 1998/ 2002

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    Comprehensive Care

    Counselling.

    Medical care. Nursing care.

    Psychosocial support.

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    Voluntary

    Counselling

    Testing

    The

    entry

    point

    NGOsChurches

    Youth Groups

    Volunteers

    PLHA

    District

    Hospitals

    HIV Clinics

    Social/legal

    Support

    Hospice

    Specialists

    &

    Specialised

    Care facilities

    Palliative

    Emotional &Spiritual Support

    Self Care

    Primary Health

    Care

    Secondary

    Health

    Care

    Community Care

    Tertiary Health

    Care Home care

    Peer Support

    Health posts

    Dispensaries

    Traditional

    Orphan care

    Prevention Care ContinuumService Continuum

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