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.
i want mechanism
Define beneficial effects of functional foods? Several beneficial effects of functional foods have been reported, which include effects such as antioxidant, anticarcinogenic, b
the characteristics of flying fish belong to pisces
Disadvantages of Ridgemapping a) Traumatic procedure b) Time consuming procedure and needs more armamentarium c) There is an inherent risk of inaccuracy especially whil
Q. What about the fluid and other nutrient intake during constipation? The fluid intake should be at least 2 litres daily. This includes fluid as foods and beverage besides wa
Hypoglycaemic coma is a medical emergency. A loss of consciousness is due to low sugar level. Patient should immediately be given biscuits, chocolates, sweet, fruit. If unconscious
To study the structure of a seed Soak seeds of bean, pea, pumpkin, sunflower, corn and other large forms. Take away the seed- coats and carefully cut the seeds open. Discover t
There are three methods of collections: 1. Kerbside collection: In this collection system the refuse is brought in containers and placed on the footway, from where it is
Explain about the Gelation? Gelation refers to the process where denatured molecules aggregate to form an ordered protein network. Proteins can form a well-ordered gel matrix b
What proportion of children with Down syndrome do you expect when women with Down syndrome have children with men who have 46 chromosomes justify your answer?
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