W.
Michael Scheld, M.D.
Professor, Department of Internal Medicine
Division of Infectious Diseases, U.Va.
"No Heart of Darkness: Uganda and Response to AIDS"
April 17, 2002
Dr.
Scheld: About 28 million people in sub-Saharan Africa are AIDS infected.
This is probably about 70% of the world, total. 17 million HIV
deaths are 83% of the world total and have occurred in sub-Saharan
Africa and about 2.3 million died last year, alone. 90% of all
the infected children around the globe live in sub-Saharan Africa.
80% of the affected women are from this region. At least 10% of the
population is infected in 16 countries. The serial prevalence
has reached 36% in Botswana and it is very close to that in Mozambique
and other areas in the very southern tip of Africa. Eight thousand
new infections occur every day and in some hospitals 75% of the hospital
beds are occupied by AIDS patients. Up to 800,000 children have
been affected perinatally in Africa. Fortunately, this last
statistic is on the reverse because of the increasing availability
of Nevirapine to prevent mother to child transmission in many areas
of Africa. So,
as you see from this table, 28% of deaths occur because of AIDS.
And the other conditions, here, are well familiar to most of you
in the audience--malaria, pneumonia, diarrheal diseases. Tuberculosis
is a major cause of death in African and, in fact, approximately
50% of the AIDS deaths that do occur in sub-Saharan Africa are due
to Tuberculosis. It is a very common co-infection with HIV
and AIDS.
You
have seen magazines and I think that, over the last six to eight
months, there have been a number of stories in The Washington Post,
New York Times, and an NPR that addressed the critical issue of
AIDS in Africa. In a little while I will come back to the
global fund, which I hope will be able to help us with some of our
opportunities and issues that we are trying to address in Africa.
This
is a picture that I took of the AIDS clinic that I took in the Malago
Hospital, which I will describe to you a little later. The
Malago hospital is a major teaching hospital in Uganda. It
is considered the national hospital. There are about 1,100
beds but there are 1,500 patients at any one given time. So,
most of the people are in the hallways and on the floor. There
is no meal service in the hospital. None. Their monthly
budget for supplies and drugs for a hospital of 1,100 beds is 15,000
dollars a month. This is the AIDS clinic and there are no
other medicines available here other than amoxicillin and tetracycline
and they are in very scant supply. There are no antiretral
virals. We have actually moved this AIDS clinic to another
area. The hospital was operating only one half-day a week
as of June of last year. As of last month, with help from
the Academic Alliance, which I will describe later, is not operating
three full days a week.
The
contingent of patients that is cared for through the Malago Clinic
is about fifty thousand. And it spread all over Southern Uganda.
This
shows you the projected changes in life expectancy in selected African
countries that have high HIV prevalence from 1995 to 2000.
You can see the major drop. Just take Botswana, for example.
Life expectancy back in 1955 was between 40 and 45 years.
It steadily rose to 1990 where it was between 60 and 65 years.
It had been reversed dramatically as has Zimbabwe, Zambia, Uganda
and Malawi.
This
is a very sobering slide. It shows you the lifetime risk of
an AIDS death in a 15 year-old boy, assuming there is no change
in the epidemic. I will direct your attention to Botswana.
This is assuming that the current level of risk is maintained.
A 15 year-old boy in Botswana has a 90% chance of dying from
AIDS. That is going to be there cause of death. It is
a pretty sobering statistic and it is similar for other countries
like Zimbabwe. Even if you cut the risk in half, it is still
going to be around a 75% risk of death during their life from HIV
and AIDS.
This
is a situation as projected for the population structure in Botswana
in the year 2010. You can see that with the elderly individuals
it is not going to change very much, but not many people are going
to get to be elderly because there is going to be a dramatic drop
in individuals between 15 and 50 years of age due to death from
AIDS, if the epidemic is not halted in some manner.
This
demographic impact of AIDS in Botswana, Malawi, Mozambique, and
Swaziland show that the life expectancy is now less than 40 years
of age when it was 60 years of age not long ago.
In
Africa, the life expectancy has declined from 62 to 47 years over
all. In Haiti, which has also been affected by this epidemic
in a major way, life expectancy has dropped from 59 to 53 years.
And in the Bahamas, 60% of the deaths among children less than five
years of age, are due to AIDS. In Zimbabwe, this figure is
70%.
The
economic impact is dramatic. The annual per capita growth
in half of the countries that I have described here today is falling
by .5 and 1 percent. Gross Domestic Product, by 2010, may
drop by 8% overall and by 2020, it is estimated that it may drop
more than 20%. That is a very huge difference.
In
several countries, 53% of all the illnesses around workers are AIDS
related. 7 million farm workers have died from AIDS and over
85% of the teacher deaths in sub-Saharan Africa have been due to
AIDS.
I will
just tell you another anecdote. Teachers are being decimated
by this epidemic. In addition, students and teachers in medical
schools are not exempt from the epidemic. In Mozambique they
have one medical school which produces about 40 physicians a year
for a population of 18 million people. There are 400 doctors
in the country of Mozambique, total. 25% of the medical students,
upon entering medical school, are HIV positive. The school
has decided, in recent weeks, that they are going to screen incoming
medical students for HIV, and if they are positive, they will not
be admitted. I am not going to get into the ethics of that,
but as you can see, training would be very long and if you are not
going to be around at the end of your training, they are probably
not going to put their emphasis there.
This
is sort of a grim beginning. I would like to talk to you a
little about what has happened in Uganda. There have been declines
in HIV in Uganda that appear unique in Africa and likely relate
to a behavioral change. One of the other countries in Africa,
Senegal, has held their HIV serial prevalence down around 2%.
They have used a similar program that the Ugandans have used as
well.
Let
me just back up and say another thing. President Museveni,
whom you will see in a photograph later, came to power in Uganda,
not under all-time peaceful circumstances in 1986. Shortly
thereafter, he sent a squadron of soldiers--80 in number--to Cuba,
under Fidel Castro, to be trained as special forces.
He
got a little note back from Fidel saying that he had a little problem,
here, because 18 of his 80 soldiers are HIV positive. So,
he woke up. And, in fact, President Museveni created an Office
of AIDS in the Office of the President in 1989, which was very foresightful
in his regard. He really does have the political will to direct
his country in trying to prevent AIDS and he has put together a
very substantial program--prevention as well as counseling--throughout
the country.
You
see, here, the decline in the national serial prevalence in Uganda,
based on 15 surveillance sites. In 1990 and 1991, it was about
20%. It was actually 28% in the late 1980's when these programs
went into effect. It is now about 6 to 7 percent overall in
these sites. The official figure in Uganda is 8.1% by UN AIDS
criteria, so it has been a very dramatic decline.
This
shows you the prevalence and incidence in urban Uganda. There
are three different sites that have been studied. Jinga is
a town about 30 miles away from Compala at the mouth of the Nile
River. You can see that the percent of adults between ages
15 and 49 peaked in about 1990 at about 25%. It is not quite
as low as the country as a whole, but it has come down close to
10%. I must stress that this type of reversal has not been
apparent in the other countries that we have described here today--Kenya,
Tanzania, Botswana, Mozambique, Swaziland, etcetera.
There
have been a number of conclusions that have been reached about the
bright glimmer of hope in Uganda, but basically there have been
reported behavioral changes in Uganda that are consistent with the
surveillance data on the prevalence and incidence of AIDS in the
country.
There
have been major changes in age at first sex. This is particularly
prevalent among girls and not so much among boys. The age
at first sex has gone from around 15 years up to nearly 19 years,
which is a huge change in less than a decade in a behavioral characteristic.
There has been a dramatic drop in casual and commercial sex in Uganda.
Condom
use is pretty important, obviously, but if you actually look at
data on condom use in Uganda versus neighboring Kenya, the overall
use of condoms is very similar and it is very low--not as
much as you would expect. But, what is different is that,
condom use in casual sex or with people you do not know, is dramatically
higher in Uganda than it is in neighboring countries. If you
know your partner and you marry early--which is what is happening
now with girls in Uganda--then condom use drops dramatically if
they only have one single lifetime sexual partner. This is
the good news in the regard to serial prevalence.
To
fight AIDS we need both treatment and prevention. I would
like to describe some of the problems with instituting treatment
and how it should be monitored in a resource-limited setting. Effective
HIV therapy, we believe, requires a longstanding commitment infrastructure,
which is greatly lacking in sub-Saharan Africa, high-tech resources
and medical expertise. In addition, there are very few folks
in Africa and any of the countries that I mentioned to date, that
have the sufficient expertise for the delivery and care of antiretral
virals either in an urban or real setting. This will not be
achievable in resource-poor countries without the help from richer
countries and international health agencies.
There
are multiple documented benefits of antiretral viral therapy.
For the individual, it increases survival, decreases opportunistic
infections, decreases the number of hospitalizations. There
is a decrease in AIDS incidence, a decrease in perinatal transmission
that has been conclusively shown that treatment of mom reduces transmission
when you have antiretral viral therapy. It restores hope and
benefits both children and adults.
We
believe that HIV care is very important to prevention. It
is an incentive for voluntary counseling and testing. If you
have care available, people will submit to voluntary counseling
and testing at the present time. If there is no care available
in the large stigma associated with the disease, then nobody wants
to be tested because if there is nothing to be offered, then why
know?
The
targeted prevention message to people living with HIV can be achieved
by this strategy. You can engage your health care providers
in the local environment. If you do provide HIV care, then
you do reduce transmission. With a reduction in HIV viral
RNA, about 3 to 3.5 logs is enough to reduce transmission of discordant
couples, for example. And you also have other benefits of
reducing sexually transmitted diseases, etcetera.
We
believe that we also need to provide operational research in a resource-limited
setting on antiretral viral drug implementation in Africa.
These are questions that we have begun to address with some of the
protocols that we are writing. When do you start antiretral
viral therapy? What should be the CD4 count? Should
it be 200, 350? What do you start with? When do you
switch therapy? What do you switch to? How do you monitor
therapy? Viral loads and CD4 counts are very expensive.
Can you use clinical parameters like weight loss, thrush or diarrhea
as a failure of therapy? Can you use a total lymphocyte count
instead of a CD4 count to monitor therapy? These are some
of the questions that we and many others are trying to address.
Who
should receive therapy? If you have 914,000 people that are
HIV infected in the country of Uganda, and as you will see in a
moment we hope to be able to treat 30,000 of them by the end of
next year, who do you start with and who decides? It has to
be the Ugandans. How do you promote adherence to therapy?
How do you prevent and treat opportunistic infections in a resource-limited
setting?
Those
of you who are conversant with AIDS care will recognize that these
questions are just as relevant in the United States as they are
in Uganda, but the situation is different and solutions are undoubtedly
different there.
Program
monitoring and evaluation will require sentinel laboratories and
a longitudinal cohort to document the impact, which is part of our
goal with the Academic Alliance. We need to appraise the program
and show a response in operational research that is country specific.
We also want to look at the number of patients that have been served,
the number of orphans, impact on the workforce, mortality and comorbidity.
There
are many challenges to developing an HIV therapeutic service in
a resource-poor setting. Access to therapy is the most important
one. Clinician skills are, as I mentioned earlier, difficult.
There are not many people that are trained in the use of antiretral
virals in Africa. The laboratory resources are very poor and
the promotion of care-seeking adherence, I think, is very important.
One
of the excuses that politicians have used for a slow response to
delivering antiretral virals in Africa is that there is going to
be poor compliance and therefore you will develop more drug resistance.
In fact, we think that it is going to be the opposite. Because
of the social structure in Africa and because of the possibility
of directly-observed therapy, which I will describe later, we actually
think that drug adherence would be better. In fact, we are moving
toward once-a day therapies and therapies that could be used in
a rural setting. There is very little intravenous drug use
in Africa as a cause of HIV, which, as you know, is a population
in the United States which are very difficult to assure compliance.
The
unmet needs are an accelerated prevention program, funds for diagnostics,
AIDS drugs including antiretral virals, including the global fund,
infrastructure for training and clinical care in laboratory support
as well as operational research so AIDS drugs including ARV's can
be delivered effectively and safely. And obviously we need
an effective, preventive therapeutic vaccine, which unfortunately
is years away.
I would
like to describe for you now, in the time remaining, the Academic
Alliance for AIDS care and prevention in Africa and what we hope
to achieve with some of your help, I hope, because we are going
to hopefully be sending medical students, residents and fellows
to Africa to work on this effort.
We
are building and infections diseases institute at Makerere University
that is part of our program. These are the individuals that
make up the Academic Alliance. Merle Sande is well known to
some in the audience. He was a former faculty member at the
University of Virginia. He moved to San Francisco General
as the Chairman of Medicine, and then to the University of Utah
as the Chairman of Medicine. He has stepped down that his
position at Utah to devote most of his time to the Academic Alliance
for AIDS Care and Prevention.
Merle
and Nelson Sewankambo are co-directors of the Academic Alliance
and Nelson is the Dean of the Medical School at Makir University.
Jerry
Ellner has worked on tuberculosis research in Uganda since 1999.
He is currently the acting Chair of Medicine at New Jersey Medical
School.
Allen
Ronald just stepped down as the Chair of the Department of Preventive
Medicine in the University of Manitoba in Winnipeg, Canada.
Fortunately for all of us he is on the ground in Uganda, 9 to 10
months of the year. He is really responsible for working with
our Ugandan colleagues and implementing the programs around the
ground.
You
know me, and Tom Quinn is a professor of medicine and microbiology
at Johns Hopkins University and has been active in looking at transmission
in concordant couples as well as the impact of circumcision on the
transmission of HIV and sexually transmitted diseases.
Elly
Katabira is a very well known Ugandan on the international scene.
He has served at the WHO developing treatment guidelines as well
as opportunistic infection prophylaxis guidelines and is currently
the director of the HIV AIDS clinic at the Mulago Hospital.
Harriet
Myanje is the Chairman of Medicine at Makir University. She
is the first woman to hold that position and has done a number of
research projects on Cryptococcal Meningitis, which, incidentally,
is rampant in Uganda--about 10% of patients that have HIV eventually
develop Cryptococcal Meningitis. It is actually the second
most common form of meningitis in the country.
Edward
Mbidde is a senior statesman on the faculty at Makir University.
He actually heads the cancer program there and he runs the clinical
program on Kaposi's Sarcoma.
Moses
Kamya is my counterpart--we co-direct the training programs, which
we will describe for you later. Moses is the head of graduate
medical education for the school
Roy
Mugerwa is the former Chief of Medicine at Makir University and
has worked with Jerry Ellner on tuberculosis research for about
a decade.
Phillippa
Musoke is a pediatrician. She runs the HIV clinic for children
at the Mulago Hospital and is part of our group.
David
Serwadde and Fred Wabwire-Mangen are co-directors for the Institute
for Public Health at Makerere University and have been very instrumental
in both prevention as well as outreach programs.
Peter
Mugyeni is very well known internationally. He is the head
of something called the Joint Clinical Research Center, which enjoys
some funding from the Ugandan government but also from international
NGO's, that is Non-Governmental Organizations, and it is the only
place in Uganda at the present time where antiretral virals are
available.
The
900,000 people I told you about that have HIV in Uganda--there are
about 15,000 on therapy with the antiretral virals at the present
time.
These
are our goals:
•
We would like to provide enhanced HIV care including antiretral
virals and prophylaxis for opportunistic infections to both adults,
children and their families.
•
Establish an education and training program for African physicians
and health care providers in HIV care and prevention. This is being
done in concert with The Infectious Diseases Society of America.
•Implement
an intensive prevention program which will be run jointly by the
Institute of Public Health.
•
In Makir University and the Academic Alliance we will be conducting
clinical research to identify the best algorithms for patient care,
including directly observed therapy and once-a-day treatment regimens.
•
Establish a clinical laboratory to monitor HIV therapy and to support
diagnosis of opportunistic infections, tropical diseases and sexually
transmitted diseases.
We
want this to be a sustainable program. One day the North American
members of this Academic Alliance want to walk away from this project
and it should be all-African run, all-African trained and we have
to get there with support from multiple different sources.
President
Musevini of Uganda is very aware of our project. We have met
with him several times. He has given us 2 very important things:
access to his office twice a year, and no duty or taxes on anything
we donate, including $900,000 worth of laboratory equipment--which
is a very big deal.
The
AIDS Commission is run by Dr. Apuli. This is our contact for
the Global Fund, which you have heard described earlier. We
have been working with USAID which is run by Dawn Liberi.
The CDC has a post in Uganda run by Jean Mermann. Milago Hospital
and Makir University I have already mentioned. The Ministry
of Health we meet with every time we are there and they are very
behind our project. We also meet with the American Ambassador,
Ambassador Brennan, on every trip.
Just
a word about the training. We have collaborated with the Infectious
Disease Society of America and the Academic Alliance to put together
a training program. The initial program is focused on the
training of physicians. There will be two trainers from the
IDSA. It is a month-long training program over 4 weeks.
It is about 50% didactic classroom and 50% clinic. There will
be around 10-12 trainees per month. This is a regional training
center, which is what I want to emphasize. It is not just
for Uganda. In the second month of training, doctors are going
to be coming from Botswana as well as Zimbabwe.
We
want the trainers to be there for at least 3 months. They
are going to be teaching in various settings. The faculty
will be selected from schools throughout the world. A lot
of the training is going to be conducted by the Ugandans themselves.
They know the current situation, they know how to treat Cryptococcal
Meningitis. The curriculum is being developed by not only
the IDSA, but also by Africans so that our trainees can walk away
with a syllabus this thick and the Palm Pilot has three books on
it as well as algorithms for treatment care which they will be able
to take back to their clinic. There will be on-site facilities
to support this training program.
This
is the first continuously run HIV care educational program in Africa.
We hope to train up to 80 people a year. The course will be
4 weeks, as I have said. The trainees get money for travel,
room and board. The program will start later this month.
This
is a laboratory program--microbiology, biology, etc.--for the care
of patients as well as for development of antiretral viral resistance
and CD4 counts on computerized databases, etc.
Finally,
the prevention program is based in the Institute of Public Health.
It will be focusing on HIV positive individuals and their families.
We hope to enhance voluntary counseling and testing in the medical
wards. We have a protocol that we are doing right now for
the Doris Duke Foundation to do exactly that. Screening and
treatment of sexually transmitted diseases and perinatal transmission
prevention is actually very well established.
This
is the last slide that I am going to show you. It is of a
bunch of happy children in Uganda I took a picture of. We
would like to keep them happy. We would like for them to have
a productive and healthy life. I think that they are already
making tremendous gains there in Uganda, but we believe that the
Academic Alliance can help in this effort. It is a small start,
but it's a start.
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