Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Leishmanias – Flagellates
Species of the genus Leishmania are parasites of mammals including man. Leishmanias infections occur over wide regions of the world from Asia, the near and middle East to East and West Africa and from Mexico to the northern part of Argentina.Sandflies (Phlebotomus or Lutzomia species) serve as vectors for all species of Leishmania.
The parasite is flagellated in sandfly. During its blood meal, the fly introduces the parasite into the skin of the mammalian host. The wandering macrophages engulf these parasites. In the host cell they lose the free flagellum and become rounded. The parasites multiply by repeated binary fission, emerge from the host cell by destroying it and invade newer macrophages to repeat the propagative cycle. When a sandfly feeds on the blood of an infected vertebrate, it also ingests the infective stage of Leishmania. Leishmania species cause a wide range of disease. L. donovani, which is widely distributed in some regions of Latin America, causes a serious and fatal disease, kala-azar or visceral leishmaniasis -involving liver and spleen. In Assam, 25 per cent of the population was deleted between 1890 to 1900 due to kala-azar.
Figure:(a) Leishmania donovani in macrophages (b) Child with swollen abdomen due to enlarged spleen
Sometimes severe dermal infection appears in those individuals who have earlier had kala-azar infection. Ltropica which mainly occurs in the West and Central India and arid regions of the eastern hemisphere, causes cutaneous leishmaniasis or oriental sores. This is a mild disease in which at the site of each bite by the fly, a small ulcer is produced.
Define Comprehensive Dietary Management Regime of Patient? A comprehensive dietary management regime of the patient should be based on the patient profile as gathered pre and p
Q. What is the evolutionary advantage of the occurrence of larval stage and sperm cells in the life cycle of sponges? The sexual reproduction in sponges in addition to contribu
two inorganinc salts found in the body
meaning of the law of inertia
Q. How does the heart impel the blood? The heart is a muscular organ that contains chambers right ventricle and right atrium right ventricle and and left atrium through which b
What are the Micronutrients All the micronutrients except molybdenum, boron and chlorine are available more in acid soils. These elements may limit plant growth either becaus
Define Microscopical Examination of Starch Granules? Take a slide and make a thin film of a suspension of starch granules from different sources and examine under a microscope.
Gastrulation in some Animals As mentioned before gastrulation marks the beginning of morphogenesis that is development of body form and organisation of cells in the embryo. By
If a cell were placed in a hypertonic solution what could it do to protect itself?
describe the mechanism of allosteric change.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd