Presentation Transcript
Water and HIV/AIDS: Water and HIV/AIDS Dr. Kate Tulenko
WSP
February 20, 2007
Purpose: Purpose To make WSP staff familiar with common HIV/AIDS concepts and terminology so they can “talk shop” with health specialists.
Train WSP staff to give assistance to MOWs and water utilities to design HIV/AIDS programs for their staff and clients.
Train WSP staff to start a dialogue with MOWs on the health benefits of providing improved WSH to PLWHAs and the need for programs and research.
Outline: Outline Overview of the Human Immunodeficiency Virus
Overview of the HIV/AIDS Pandemic
HIV/AIDS, MOWs, & Water Utilities
Role of WSH in Improving the Lives of PLWHA
Overview of the Human Immunodeficiency Virus: Overview of the Human Immunodeficiency Virus
HIV Virus: HIV Virus Believed to be a zoonosis (transmitted from animals)
Found in almost all body fluids
Virus: Cannot replicate outside of a living cell
Enters and damages white blood cells, especially helper T cells (CD4)
Transmission: Transmission Unprotected Sex
Maternal to Child Transmission
During pregnancy
Breastfeeding
Sharing of Needles
Blood Transfusions
Risk Factors: Risk Factors STDs
Multiple partners
Partner with a risk factors
Use of alcohol and drugs
Lack of power within the relationship
Women, age
Diagnosis: Diagnosis Rapid diagnosis kits and now the gold standard
Detect HIV proteins
Acquired-Immune Deficiency Syndrome
Low CD4 count
Opportunistic infections
TB
Rare cancers
Rare pneumonias
Overwhelming fungal infections (Candida)
Natural History: Natural History Time from infection to significant symptoms (Opportunistic Infections) 5 to 10 years
Time from significant symptoms to death: 3 to 5 years if untreated
AIDS in Africa dominated by “Slim Disease”: chronic diarrhea and weight loss
Weakened Immune System: Weakened Immune System Opportunistic infections (harmless to normal immune system)
Candida
Pneumocystis
Toxoplasmosis
CMV
Lowered infectious doses for standard pathogens
Overview of the HIV/AIDS Pandemic: Overview of the HIV/AIDS Pandemic
2006 AIDS Statistics: 2006 AIDS Statistics 39 million people infected in the world
24.7 million in Sub-Saharan Africa
7.8 million in South East Asia
2.2 million in Europe and North America
1.7 million in Latin America
4.3 million new infections in 2006
2.9 million HIV/AIDS related deaths in 2006
Estimated that around 2million people are receiving ARVs in developing countries
Stages in the Epidemic: Stages in the Epidemic Focal: in high risk groups
Commercial sex workers and their clients
Men who have sex with men (MSM)
IV Drug Users (IVDU)
Other high risk occupations: truck drivers, miners, migrant workers
Generalized
General population
Responses: Responses Target messages to high risk groups
Reduce high risk behaviors
Mitigate risk
Counseling and testing
General population
Awareness
Reduction of stigma
TB and Malaria: TB and Malaria The AIDS epidemic caused a surge in the TB epidemic
Most PLWHA should be on medication to prevent TB
Hygiene issues associated with TB
People with low grade malaria infections are much more likely to get HIV when exposed
Water issues associated with breeding sites for malaria transmitting mosquitoes
Mitigating Risk: Mitigating Risk Reduction in number of sexual partners
Decrease in age of first sex
Increase in condom use
Needle cleaning or needle exchange
Male circumcision
Rapid treatment of STDs
Switch infant formula only if it is AFASS. In most low resource settings, HIV+ women should breastfeed
Changes in societal attitudes
The Scourge of Stigma: The Scourge of Stigma Prevents people from seeking diagnosis and care
Dying vs Dying from AIDS
In Uganda, the CDC Safe Water System became identified with HIV/AIDS
Use readily available WASH methods
Life with ART Depends on the Quality of Care: Life with ART Depends on the Quality of Care Goal: to maximize functional years and delay resistance
Delay ART treatment as long as possible
Criteria
White blood cell count (CD4)
Viral loads
Symptoms
Resistance (what drugs to start on)
Compliance
Monitor
The above plus liver enzymes
Why is it so Difficult to Treat HIV/AIDS?: Why is it so Difficult to Treat HIV/AIDS? The virus is protected within cells.
HIV attacks the immune system, the systems that is responsible to eliminating infections.
HIV reproduces rapidly and mutates rapidly. A recipe for drug resistance.
Drugs have to be taken frequently and regularly
Drugs have to be taken for the rest of the patient’s life.
Drugs need to be adjusted for resistance.
Resistance and blood cell count levels, and viral load levels need to be monitored.
Why is it so Difficult to Treat HIV/AIDS?: Why is it so Difficult to Treat HIV/AIDS? The drugs have side effects
In addition of ARVs, drugs need to be take to prevent Opportunistic Infections (IOs)
Most PLWHA do not know they are infected.
Even those who know they are infected refuse treatment do to stigma.
HART requires a team of highly trained clinicians and support staff, a strong laboratory system, a good drug stocking.
To prevent resistance, patients usually need to be on three ARVs
Major HIV/AIDS Initiatives: Major HIV/AIDS Initiatives World Bank MAP (Multi-Country AIDS Program): prevention, community based funding, required non-health sectors to be involved
Global Fund: Little technical assistance provided
PEPFAR (USAID): ARV therapy, Prevention of Mother to Child Transmission (PMCT)
WHO 3x5: ARV therapy
Clinton Foundation: ARV therapy
The Role of WSH in Improving the Lives of PLWHA: The Role of WSH in Improving the Lives of PLWHA
What We Do Know: What We Do Know Improved water can reduce the number and severity of episodes of diarrhea of PLWHA (Increases functional days)
Improved WASH eases the family caregiving burden, especially at the end of life
Issues of disposal of large quantities of HIV infected diarrhea
Infant formula made with improved water can eliminate transmission from breast feeding but ACCESS TO IMPROVED WATER AND FORUMLA MUST BE GUARENTEED FOR AT LEAST 6 MONTHS!! (AFASS)
Key Entry Point: Priority Clients: Key Entry Point: Priority Clients Higher priority to provide WASH services to symptomatic non-treated PLWHA
Key Entry Point: Key Entry Point Mothers and Infants who received PMTCT should receive at least 6 months worth of guaranteed improved water and infant formula
What We Don’t Know: Research Needs: What We Don’t Know: Research Needs Safe water away from home.
Can sanitation alone or hygiene alone reduce diarrhea in PLWHAs?
Can improved WASH reduce the number of respiratory infections in PLWHAs?
Can improved WASH help maintain weight and nutritional status?
Can improved WASH provided at onset of symptoms delay the need for ART initiation? (delays resistance)
Can improved WASH prolong lifespan?
What has the water sector done internally to mitigate HIV/AIDS?
HIV/AIDS, MOWs, & Water Utilities: HIV/AIDS, MOWs, & Water Utilities
Job Site Programs: Job Site Programs Involve employees and families
Management should take a lead role in
Mandatory sessions
Maintaining confidentiality
Offer services off-site if feasible
Programs should be evaluated and improved on a regular basis
Job Site Program Services: Job Site Program Services Education
BCC
Reducing stigma
Tackling sexual harassment in the workplace
Making people aware of company rules and benefits
Counseling and testing
Treatment
Care
Death benefits and survivor benefits
Questions?: Questions?