CHAPTER 8
RECOMMENDATIONS
8.1 Introduction
The purpose of this chapter is merely
to group together all the recommendations made in the different chapters of
this report.
8.2 Recommendations
on surveillance what should be done about the South African epidemic?
8.2.1 Deliberations of the panel
The deliberations of
the panel were at all times bedevilled by the absence of accurate and reliable
data and statistics on the magnitude of the AIDS problem or even HIV prevalence
in South Africa. Repeated requests for such data and statistics, particularly
by panellists who refuted the causal link between HIV and AIDS, failed to result
in the provision of such data by either South African panellists or the officials
of the Department of Health.
Recommendation
It is therefore strongly
recommended that appropriate measures be taken to establish the necessary infrastructure
and provide the necessary expertise and resources to collect the data and develop
reliable and up-to-date statistics on the magnitude of the AIDS problem and
the prevalence of HIV in South Africa. All efforts must be made to ensure AIDS
reporting in South Africa is up to the highest standards in the world.
8.2.2 Discussions on mortality data
The discussions around
the mortality data presented by Dr Makgoba revealed the necessity for a study
to unpack the numbers and gain deeper understanding as to whether the changing
mortality profile resulted from AIDS only and/or from factors other than AIDS.
Recommendation
It is recommended that
a trans-disciplinary team comprising members from all the relevant branches
of science, including social sciences and humanities, other relevant professional
spheres and representatives of relevant government departments be constituted
to undertake an in-depth study of the mortality trends in South Africa and report
on the results of the study to the South African government.
8.2.3
Recommendations from panellists who do not subscribe to the causal linkage between
HIV and AIDS
It was recommended
that the South African government commit to the following:
- Suspend the dissemination of the psychologically destructive and false message
that HIV infection is invariably fatal and assist in reducing the 'hysteria'
around HIV and AIDS.
- Suspend all HIV testing until its relevance is proved especially in the
African context, given the evidence of false positive results in a tropical
setting and the fact that most assumptions and predictions about AIDS in Africa
are based on HIV tests.
- Continue to improve social conditions in South Africa.
- Continue to decrease poverty.
- Continue to control infections and sexually transmitted diseases.
- Continue to increase the nutritional status of the population.
8.2.4 Recommendations from panellists who subscribe to
HIV as the cause of AIDS
Dr Gayle and Prof Abdool-Karim,
representing panellists who endorse the causal link between HIV and AIDS, reinforced
the importance of the following initiatives for the South African government:
- Continue strengthening the surveillance of risk factors such as the behaviour
of youth.
- Surveillance of HIV prevalence in antenatal clinics, blood banks and among
workers.
- Conducting incidence surveys.
- AIDS surveillance at health facilities.
- Keeping death registers.
- Standardisation and evaluation of diagnostic criteria and their completeness
for reporting purposes.
- Surveillance of antenatal syphilis.
- Laboratory reporting
- Health facility reporting.
8.2.4.1 Recommendations on surveillance as it pertains
to reduction of blood-borne infection
The South African government
needed guidance on the following issues:
- The most appropriate policies on screening and quality assurance for blood
safety.
- The most appropriate policy to reduce or prevent needle-stick injury with
specific reference to policies on single use needles.
- Policies on the management of occupational HIV exposure, including post-exposure
prophylaxis. Research on post-exposure prophylaxis needs to be pursued vigorously.
- Policies on education and implementation of universal precautions.
- Most appropriate education and training related to reduction of risk of
HIV and transmission in nosocomial settings and related to surgical operations.
- Policies on intravenous drug use.
8.2.4.2
Recommendations on surveillance as it pertains to reduction of HIV from Mother
to Child
The South African
government needed to pay attention to the following issues:
- The most appropriate policy on voluntary HIV testing and counselling of
pregnant women.
- The best policy for contraception promotion, including targeting HIV-positive
women.
- The best policy on the use of anti-retroviral drugs to treat pregnant women.
There were several research issues that were listed in this regard, including:
- Investigating the
extent of Nevaripine resistance when used to prevent transmission of HIV
from mother to child.
- The role of early
weaning and non-exclusive breastfeeding.
- What other mechanisms
can be devised to reduce transmission of HIV from mother to child.
8.2.4.3 Recommendations on surveillance as it pertains
to sexual transmission of HIV
The following issues
require attention:
- The most appropriate policy on safe sex education
- How best to promote the use of condoms
- The best policy on the most appropriate and comprehensive treatment of sexually
transmitted diseases
- The most appropriate policy on post-exposure prophylaxis for rape
- Regulation of commercial sex work and gender equity issues
- Research into finding an efficacious and effective microbicide and into
the development of a vaccine for therapy and prevention needs to be continued
vigorously
8.2.5 General recommendation
There was general consensus on the
need for the case definition of AIDS to be standardised for clinical practice
in South Africa.
8.3 Recommendations on HIV Testing
8.3.1 Proposed studies and experiments
The key issue that came under focus
was the reliability of the ELISA testing in terms of delivering time infection
data. As a diagnosis of HIV infection has such a profound effect on a persons
life and future, it was considered of utmost importance that the tests are unimpeachably
reliable. Since all epidemiological predictions concerning HIV/AIDS in South
Africa are based on the results of such tests, their absolute reliability was
declared to be of utmost importance.
A major recommendation arising from
the two meetings was to apply a series of HIV tests of increasing stringency
in order to establish the validity, veracity, rigour, reliability and concordance
of ELISA, PCR and viral isolation. Details on some of these experiments are
presented in Chapter 9 of this report.
The experiment will consist of the
following series of steps:
- ELISAs as they are currently employed.
- The same tests using a pre-absorption protocol to remove cross-reacting
antibodies such as those against mycobacteria that some panellists asserted
frequently confound ELISA tests.
- A variety of nucleic acid based protocols.
- The application of the classical gold standard of virus isolation, including
electron microscopy.
These tests will be performed on cohorts
chosen to represent the full spectrum of the South African population.
8.3.2 Recommendation on future HIV testing
The panellists who refuted the causal
linkage between HIV and AIDS recommended the suspension of all HIV testing until
its relevance is proved, especially in the African context, given the evidence
of false results in a tropical setting and the fact that most assumptions and
predictions on AIDS in Africa are based on HIV testing.
8.3.3 General recommendations on testing
- The case definition of AIDS to be standardised for clinical practice in
South Africa.
- Any positive HIV ELISA result to be repeated with at least two additional
blood samples before an HIV diagnosis is confirmed in order to improve the
reliability and validity of ELISA.
- Apply a series of HIV tests of increasing stringency in order to establish
the validity, veracity, rigour, reliability and concordance of ELISA, PCR
and viral isolation.
8.4 Recommendations on treatment of AIDS with anti-retroviral
drug
8.4.1
Recommendations on the use of anti-retroviral drugs for the treatment of AIDS
from the panellists opposed the causal link between HIV and AIDS
The recommendations on the treatment
of AIDS from panellists who refute that HIV has a causal link to AIDS were informed
by their observation that the definition of AIDS in western countries was different
from that used in Africa. These definitions have changed over time to the point
where a person diagnosed with AIDS in Africa would not be considered an AIDS
patient in the USA, Europe and Australia. There was also the critical question
of whether Africans clinically diagnosed with AIDS were in fact HIV-positive.
These considerations led to the following assertions:
- AIDS is not contagious, although
many of the opportunistic infections are.
- AIDS is not sexually transmitted.
- AIDS is not caused by HIV.
- The admittedly toxic anti-HIV drugs
are killing people.
- The drug-induced toxic effects
cause AIDS-defining conditions that cannot be distinguished from AIDS.
These considerations led to the following
recommendations on the treatment of AIDS:
- The South African government should
devote the bulk of national and international biomedical and other resources
to the eradication of prominent AIDS-defining diseases such as malaria,
TB and enteric infections and also to the improvement of nutrition and the
provision of improved sanitation and clean water.
- Anti-retroviral drugs and any other
immune-suppressive drugs should under no circumstances be used to treat
AIDS patients or any other patients that are immune-compromised. These drugs
inevitably require significant amounts of compensatory medication and are
claimed to produce, at best, only short-term benefits in seriously sick
patients.
8.4.2
Recommendations on the treatment of AIDS from the proponents of anti-retroviral
drug use
Given the demonstrated benefits of
anti-retroviral drugs in the treatment of HIV/AIDS, the usage of that accumulated
knowledge to the benefit of South Africans living with HIV infection was critical.
However, the fact that there is relatively little relevance of the recommendations
on the use of anti-retroviral drugs in the USA and Europe for a developing country
like South Africa, there is a need for more locally derived evidence based on
strategies derived from locally relevant research. This research will enable
the identification of manifestations of HIV infection and of cofactors as well
as the definition of local standards for the diagnosis of the conditions, the
description of the local epidemiology. There is also a need for South Africa
to collaborate with other countries and international organisations that are
addressing the issue of how anti-retroviral drugs use is or should be different
in a South African type setting. The development of these strategies would need
to address the following specific issues:
1. By whom should these drugs be used.
Secondary to this question are the following issues:
- How should these drugs be used.
- At what stage of infection should
the drugs be used.
- How should the use of these drugs
be affected by the different recipient populations such as adults, children,
pregnant women, etc.
- How might the use of these drugs
be influenced by the ongoing transmission that is likely in different populations.
- Issues related to use in post-exposure
prophylaxis, whether in healthcare settings or after rape.
2. The choice of the anti-retroviral
drug or drugs that might be used, their dosage and the scheduling of doses,
as well as their cost and effectiveness
3. How might the effectiveness of the
chosen drugs be affected by the concomitant use of traditional medicines
The issues listed above generated a
number of considerations that informed the recommendations that were made on
treatment. These considerations are as follows:
- Protocols need to be developed
according to what is affordable and sustainable.
- Protocols will also be decided
by the resistance profile in the community. This may necessitate expensive
tests for resistance, which may not be cost-effective.
- Under the most ideal circumstances,
a combination of drugs is best. This combination should comprise two protease
inhibitors and a reverse transcriptase.
- Decisions on when to start anti-retroviral
treatment may be difficult and must be based on the onset of symptoms. There
is a move away from the early introduction of anti-retroviral medication.
- Starting treatment too early increases
costs and may also undermine compliance. The development of resistance limits
the number of combinations that may be effective.
- There is the possibility that patients
may present late when they have opportunistic infections. The recommendation
in this regard is to deal effectively with the opportunistic infections
before instituting therapy with anti-retroviral drugs.
- Prior to commencing treatment,
it is important to undertake a baseline assessment of CD4 and viral load.
- Finally, there seems to be a need
to have guidelines on the use of anti-retroviral drugs, which must be updated
regularly as new developments emerge.
These considerations led to the following
recommendations:
1. A constantly evolving set of guidelines
needs to be developed for the treatment, care and support of patients with HIV
and AIDS. These guidelines need to address patients at all levels of care, including
those in institutions and under community-based care, and include the following:
- Diagnosis, initial evaluation and
long-term management.
- Prophylaxis and management of opportunistic
infections.
- Psychological support and end-of-life
care.
- Anti-retroviral therapy
2. Infrastructure needs to be developed
for the purpose of:
- Provision of medication, monitoring
of usage of anti-retroviral drugs and of clinical outcomes, including drug
toxicity.
- Education and training of healthcare
workers.
- Counselling and support of patients.
- Establishment of a panel for the
development of guidelines and continuing review of new data, clinical outcomes
and uses of medication. This panel should include local experts, health
officials and persons with HIV and AIDS.
- Ongoing programmes for the control
of sexually transmitted diseases and tuberculosis should be linked to initiatives
outlined above.
- There remains a series of unanswered
questions of relevance to the treatment of HIV and AIDS in South Africa
which must be addressed through direct clinical research.
- The Strategic Plan (20002005)
developed by the South African government to combat HIV, AIDS and Sexually
Transmitted Diseases was considered a good start to addressing some of the
recommendations made here.
8.5 Recommendations on prevention of AIDS
8.5.1
Recommendations on prevention of AIDS from the point of view of panellists who
do not support the causal link between HIV and AIDS
The recommendations listed below were
proposed as necessary and sufficient to combat all the risk factors that are
the real cause of AIDS:
- Improving sanitation and public
health measures to decrease water-borne diseases.
- Strengthening health infrastructure.
- Reduction of poverty and improving
general nutrition and implementing nutritional education and supplements
for the general population.
- Improving screening for and treatment
of sexually transmitted diseases.
- Promoting sex education based on
the premise that many sexually transmitted diseases and pregnancies could
be avoided.
- Implementing public education campaigns
to destigmatise AIDS and reduce public hysteria surrounding the disease.
- Investigating the use of immune-boosting
medications, such as interferons, growth factors, B-complex vitamins and
herbs (such as ginseng, Chinese cucumber, curcumin, aloe vera, garlic and
echinacea).
- Encouraging the detoxification
of the body through several inexpensive interventions, such as massage therapy,
music therapy, yoga, spiritual care, homeopathy, Indian ayurvedic medicine,
light therapy and many other methods.
- Treating infections vigorously
and timeously.
- Increased support for and promotion
of research into the development of drugs against AIDS, its cofactors and
risk factors.
- Encouraging the involvement of
complementary medical and health practitioners, including indigenous healers,
in research and clinical fields.
- Implementing aggressive programmes
to empower women and change the power relations between men and women.
- Reducing the vulnerability of communities
by improving access to health care.
- Improving literacy.
8.5.2
Recommendations on prevention of AIDS from the point of view of panellists who
support the causal link of HIV to AIDS
Panellists who support the causal link
of HIV to AIDS proposed that preventive strategies be linked more specifically
to the different modes of transmission of HIV/AIDS. These panellists did, however,
also support some of the more general medical and public health interventions
listed in section 6.1.1 above as critical to ensuring a healthy society.
Three specific modes of transmission
of HIV/AIDS were identified in Chapter 2 of this report as follows;
- Sexual transmission.
- Blood-borne/occupational transmission
- Mother-to-child transmission during
pregnancy, at the time of delivery and during breastfeeding.
8.5.2.1 General recommendations
- Other strategies need to be put
in place to address the social environment, promote safer sexual practices
and provide a supportive environment for people who are infected.
- Establish and support programmes
that minimise the spread of disease through the migrant labour system.
8.5.2.2 Recommendations on prevention of HIV/AIDS through
sexual transmission
- A stronger emphasis should be placed
on sex education.
- Improving public awareness and
the use of safer sex practices, including condoms use, in order to interrupt
the transmission of sexually transmitted diseases.
- Improving blood screening for sexually
transmitted diseases and other infectious diseases.
- Improving screening for and treatment
of sexually transmitted diseases.
- Campaigns should be mounted to
encourage the youth to delay their sexual debut.
- Sexually transmitted infections
should be treated comprehensively.
- Regulation of commercial sex work.
- Strategies should be devised and
implemented to address gender inequality.
- Reduction in the number of sexual
partners.
- There was a need to continue research
on finding appropriate microbicides for prevention of sexual transmission.
Dr Fiala suggested that although he
did not support the view of the sexual transmission of HIV, the above recommendations
did make sense as long as the focus was on a broader approach to healthy sexual
habits which encompass prevention of unwanted pregnancy, rather than a single
focus on HIV.
8.5.2.3 Recommendations on prevention of blood-borne
transmission of HIV/AIDS
- Improving screening methods for
infectious agents in blood.
- Education campaigns for the community
in order to identify potentially safe donors.
- Training of medical practitioners
on the rational use of blood and blood products.
- Strict adherence to universal precautions
by healthcare providers at all times.
8.5.2.4 Recommendations on prevention of mother-to-child
transmission of HIV
Panellists who believe that infants
can be infected during pregnancy and delivery and through breast-feeding provided
several recommendations on preventing these forms of transmission from mother
to infant.
I. General
- Supportive and effective reproductive
health services must be provided to all women.
II. Education
- Healthcare providers must inform women about the risks of being infected
with HIV. They must educate women that infection occurs through sexual exposure,
and that abstinence, mutual monogamy and consistent condom use are the only
preventive methods known. (This, according to Dr Fiala, was futile, as 2000
years of such messages from the Catholic Church do not seem to have had much
success.)
- Healthcare providers must be trained in proper counselling skills so that
they effectively counsel clients.
- Women must be educated about dual protection, namely use of a condom and,
in the event of failure, recourse to emergency contraception.
-
All women of child bearing age, and pregnant women in particular, must
have access to voluntary counselling and HIV testing. Rapid tests must be
used in this context so that women can make decisions about their health
and access the care they need during their pregnancy. As far as possible,
couple counselling must be encouraged in order to expand access to care
to the family and to ensure psychological and emotional support for the
woman.
III. Breastfeeding
-
Where feasible, HIV-positive mothers should not breastfeed their babies.
-
When breast milk is the only option for infant feeding, women should be
encouraged to breastfeed exclusively and to wean the baby off early.
Dr Stein cautioned that the recommendations
on breastfeeding had to be handled in such a way that the long- established
benefits of breastfeeding for other women are not undermined.
IV. The use of anti-retroviral drugs
Evidence of the efficacy of anti-retroviral
drugs is obtained from randomised-controlled trials as well as systemic reviews.
a) Zidovudine (AZT) - Efficacy and
toxicity
The efficacy of AZT in preventing vertical
transmission of HIV has been sufficiently demonstrated in several randomised-controlled
trials. The reduction in the risk of transmission varies from 37% to 67% in
the different studies.
No serious side effects in pregnancy
were detected in the above studies and in the infants born to these mothers
followed up to the age of four years. There is enough evidence to show that
the benefits outweigh the risks, and it is recommended that this drug be provided
to women in pregnancy where resources are available to do so.
b)
Nevirapine Efficacy and toxicity
The HIVNET 012 trial, a randomised-controlled
trial comparing Nevirapine and AZT, was conducted in Uganda. Nevirapine use
resulted in a decrease in vertical transmission of 48% (95% CI 17 to 60%). The
regime is easy and cheap to administer.
Concerns have been raised over the
development of resistance in women who have been exposed to a single dose of
Nevirapine. Further research on the implications of this resistance is necessary.
There are concerns regarding the impact
of breastfeeding on the transmission of HIV. Follow-up studies on motherinfant
pairs where anti-retroviral drugs have been used show a reversal of efficacy
when breastfeeding continues beyond six months. More research in this area is
warranted. In the interim, the best feeding advice would be formula feeding
for those who can afford it and exclusive breastfeeding with early weaning when
women cannot afford to purchase formula.
c) Combination anti-retroviral use
for MTCT prevention
Good evidence has been presented from
the PETRA trial. This randomised trial assessed the combination of AZT and Lamivudine
(3TC). This regimen resulted in a 48% risk reduction of HIV transmission.
V. Caesarean section in preventing
HIV-1 vertical transmission
The role of caesarean section has been
tested in a recent randomised controlled trail (RCT). This demonstrated an 87%
reduction in vertical transmission in the group randomised to caesarean section.
In a further analysis of this subgroup, which focused on women who had had prior
exposure to AZT, the effect of caesarean section became less dramatic.
This intervention however, cannot be
recommended as policy in South Africa for several reasons:
- There are staff constraints in
terms of obstetrics anaesthesia, availability of blood products and antibiotics.
- The incidence of infectious morbidity
may be higher in our population due to a higher rate of genital tract infections.
- In the absence of anti-retroviral
drugs, 29 caesarean sections would have to be done to prevent one case of
HIV-1 vertical transmission.
VI. Vaginal lavage during labour
The evidence from an RCT indicates
that vaginal lavage is only of value if the labour is longer than four hours
in duration. Reasonable guidelines would include not rupturing membranes in
active labour unless there is an obstetric or foetal indication. Invasive monitoring
techniques are not recommended. Routine performance of an episiotomy is also
contraindicated.
8.6 Recommendations on socio-economic factors that impact
on AIDS
As Dr Sonnabend put it: It is
not simply the cost of drugs. We need a whole lot more. We need the capacity
to provide for people and to be able to monitor. Dr Coll-Seck strongly
recommended an efficient system for monitoring and evaluating the following
recommendations to ensure that they would be helpful, not only to South Africa
but also to the countries and continents in the developing world:
- Improving the social environment.
- Reviewing laws (both customary and written) and their implementation to
protect the safety of people living with HIV and AIDS and their families.
- Initiating strategies to negotiate for reductions in the price of drugs,
local production and generics.
- Improving public awareness and use of safer sex practices in order to stop
the transmission of HIV and sexually transmitted diseases.
- Improving sanitation and public health measures.
[Contents] [Next]