103
Proc. of the Third Intl. Conf. on Advances in Applied Science and Environmental Engineering - ASEE 2015
Copyright © Institute of Research Engineers and Doctors, USA .All rights reserved.
ISBN: 978-1-63248-055-2 doi: 10.15224/ 978-1-63248-055-2-73
APPLICATION OF TECHNOLOGIES FOR DIAGNOSIS, TREATMENT, PREVENTION AND CONTROL
OF MALARIA, KALA-AZAR AND FILAIA IN ENDEMIC AREAS OF BANGLADESH
Hamida Khanum*, Jainal Abedin and Moazzem Hossain
Parasitology Branch, Department of Zoology, University of Dhaka, Dhaka 1000, Bangladesh.
* Corresponding Author Cell phone 01712-039756
Abstract :The present study was carried out in 13 Upazillas of
13 endemic districts for Malaria and 15 upozillas of 3 endemic
districts for kala-azar in Bangladesh. to assess the current
application of techniques for Diagnosis, Treatment, Prevention for
malaria and kala-azar by the professionals
For Malaria, 300 professionals were interviewed of Upazilla
Thana Complexes, they apply Examination of peripheral blood
film (40.8%) and Rapid Diagnostic test (38.50%) for diagnosis of
Malaria and also tests CBC and MP in small range. About 85%
professionals use Quinine as an appropriate drug for treating
Malaria, drugs like Chloroquinine, Pyremethamine, Artemisinin
and Malaone are also in use.
For Kala-azar, out of 205 professionals interviewed, about 80%
practice rK39 dipstick test for diagnosis of Kala-azar while, DAT,
AT, Bone marrow examination and Spleen puncture are rare.
About 73.3% professionals use SAG, 85.7% Miltefosine and
62.9% AmphotericinB as appropriate drug for Kala-azar.
The filarial cases have been decreasing for taking some
preventive steps on filariasis elimination programs. the reasons
for long time continuing filariasis due to lack of some important
things. Regarding the site of filaria, in most (31.2%) of the cases
the right leg-sided filaria. The cases with the more severe grades of
lymphoedema complained of physical problems, such as difficulty
in standing and/or walking and discomfort because of the
heaviness of the affected limb(s).
Professionals believe in use of mosquito nets, awareness
campaign, insecticide spray, early detection and treatment of
kala-azar. and malaria.. These modern technologies are widely used
world-wide and Bangladesh for diagnosis, treatment and
prevention of malaria and kala-azar, which are safe, have less side-
effect and reliable. So, Bangladesh is not behind from the advances
in world.
Key words: Diagnosis, treatment, kala-azar, malaria and filaria
.
Introduction
Considerable progress has been made towards three key objectives
in tropical infectious diseases in recent years, new approaches to
overall clinical management. Inadequate vector control; poor
nutrition, sanitation, and drinking water; civil war; and bare bones
health budgets continue to present obstacles to preventing and
controlling epidemics. Early scientific results include progress in
chemotherapy for Malaria, Kala-azar and filaria; in the developing
the fundamental knowledge required to develop a vaccine against
malaria; and in simple and accurate diagnostic field tests for filaria,
malaria and kala-azar. In addition, institution strengthening and
training support, awarded exclusively to institutions and scientists of
developing endemic countries, has increased rapidly. Over 1 billion
people are infected with one or more of the 14 Neglected Tropical
Diseases (NTD) defined by WHO are most common and living on
less than $2 a day Those affected are often marginalized and
forgotten by Government, left to suffer in silence. NTD are diverse
but all cause severe disability or death, bring a major economic
burden on endemic countries. NTDs are also known as “poverty-
related” or “tropical” diseases, are sometimes fatal and inflict severe
and permanent disabilities and deformities on almost 1 billion people
around the world, especially among the poorest populations in
developing countries
[1,2].
The neglected diseases impose an enormous
economic burden on affected communities due to lost productivity
and other issues. While there are some drugs and vaccines for
neglected diseases, these interventions do not always reach those who
need them - even when the drugs and vaccines are donated.
Drug resistance is most commonly seen in P. falciparum.
Resistance to chloroquine is most prevalent, while resistances to most
other antimalarials like pyrimethamine, quinine, mefloquine,
artemesin and quinoline compounds have also been reported. These
developments further justify the cause and urgency for formulating an
effective vaccine against malaria. The vaccine fulfilling this extreme
requirement is the type 2 vaccine. This extreme approach to Malaria
Vaccine- Development does not take into account specifically
populations affected by malaria that fall between these extremes,
such as individuals in endemic regions at high risk of P. vivax
infections [3,4].
Malaria is one of the major public health problem in Bangladesh.
Out of 64 districts, malaria is highly endemic in 13 districts and 10.9
million people are at risk of malaria. Three hill tract districts
(Banderban, Khagrachori and Rangamati) and Cox’s Bazar districts
report more than 80% of the malaria cases and deaths every year. In
Bangladesh, Both falciparum and vivax malaria are prevalent in the
country of which the number of falciparum cases are 75% of the total
cases in recent years due to increasing drug resistance. The first line
drug Chloroquinine has been replaces by Artemisinin based
Combination therapy. (ACT) for treatment of falciparum malaria
cases in 2004. Anopheles dirus, An. minimus, and An. phillipensis are
the principal vectors and all are susceptible to malathion and
synthetic pyrethroid. Promotion and use of ITNs/LLINs, selective
IRS for containment of outbreaks and intensive IEC for increasing
awareness of the people are the main components for the vector
control. (World Malaria Report, 2008) Although diagnosis by
microscopic examination of blood films remains standard, rapid
immuno-chromatographic detection of circulating parasite antigen
has entered the clinical practice. These dipstick strip tests are
specific, almost as sensitive as thick blood films, and simple to
perform. Polymerase chain reaction testing for plasmodium antigen is
most sensitive but is a research tool.
[5,11].
Visceral leishmaniasis is caused by an intracellular protozoan
parasite Leishmania donovan of reticulo-endothelia system of
vertebrates. Kala-azar affects the spleen, liver, bone marrow, etc. and
the shin become black. Bangladesh is one of the endemic countries
for visceral leishmaniasis in the world, second and largest parasitic
killer and also a major impediment to socio-economic development..
In last ten years, a total of 69000 cases were reported in Bangladesh
of which 42,780 (62%) cases were from Mymenshingh district. In
2008, 73.6% and in 2009, 71.1% of the kala-azar cases of the country
were reported from Mymenshingh (M&PDC unit DGHS). PKDL is
also prevelrnt there. Bangladesh has 12 endemic districs for kala-azar
and prevalent in 46 districts
[6.7].
The objectives of the present investigation were to assess the
knowledge, attitude and practices of technolodies for diagnosis,
treatment, prevention control for kala-azar and malaria endemic and
intervention areas of Bangladesh by the Formal Health care
Providers. Lymphatic filariasis (LF) more commonly known as
elephantiasis, is a painful and profoundly disfiguring disease. The
disease is caused by thread-like worms of genus Wuchereria and
Brugia, known as filaria that lodge in the lymphatic system, the
network of nodes and vessels that maintain the delicate fluid balance
between the tissues and blood and which are an essential component
of the body's immune system. As a Neglected disease, it is a
devastating obstacle to socio-economic development, because they
debilitate, deform, blind and kill. It is easy to understand the
significance of death rates and mortality figures. But more difficult to
translate chronic disability and illness into a value that is readily
understood by public health officials and advocates in relation to their
contribution to poverty. Increasing urbanization is occurring
gradually in low-income countries, facilitate the spread of filariasis.
This is mostly due to inadequate waste disposal and sanitation
facilities, which increase the number of breeding sites for the
mosquito.
So, filaria is transmitted through mosquitoes. When an infected
mosquito takes a blood meal, the parasites are deposited on the
person's skin from where they enter through the skin. These larvae
then migrate to the lymphatic vessels and develop into adult worms,
over a period of 6 to 12 months, causing damage and dilatation of the
lymphatic vessels. The filaria live for several years in the human host.