Why is it hard to produce vaccines against dengue and aids, Biology

Assignment Help:

Q. Why is it difficult to produce efficient vaccines against a viral infection like dengue and AIDS?

It is difficult to make vaccines for dengue because there are four different types of viruses that cause the disease (DEN1, DEN2, DEN3 and DEN4) and it is supposed that the protection against one of them aggravates the clinical manifestation when the person is later infected by the another dengue virus similarly, In the case of HIV, the production of a vaccine is difficult because the virus is highly evades and mutant the antibody action.


Related Discussions:- Why is it hard to produce vaccines against dengue and aids

Explain the history of nutrition, Explain the History of Nutrition? Kno...

Explain the History of Nutrition? Knowledge of human nutritional needs and relationship between diet and health was placed on a modern scientific footing only since the 19th ce

Explain the effect of non nutritional factors pregnancy, Explain the effect...

Explain the effect of Non Nutritional Factors pregnancy? The incidence of LBW is lowest and mean birth weight is highest in the state of Kerala, which is attributed to better

Which forms the inner walls of blood vessels, The kind of epithelium which ...

The kind of epithelium which forms the inner walls of blood vessels is : 1. cuboidal epithelium 2. columnar epithelium 3. ciliated columnar epithelium 4. squamous epith

What is the likely function of the snf gene, In yeast, a new mutation calle...

In yeast, a new mutation called suc was recently discovered.  The suc mutant cannot use sucrose as a source of carbon, and will not grow if the culture medium contains only sucrose

Microfilaments - cytoskeletal structures, MICROFILAMENTS Discovered ...

MICROFILAMENTS Discovered by Pelvitz. These are smallest cell structure. These are non-living structures. These are solid structures, consists of actin protein (c

Point out some guidelines for breast-feeding, Point out some Guidelines for...

Point out some Guidelines for breast-feeding? 1) Follow demand feeding of the baby instead of a fixed schedule. 2) Initiate breast-feeding within 2 h after a normal delivery

Filaments of a sarcomere in a skeletal muscle is decreasing, When the overl...

When the overlap between the thin and thick filaments of a sarcomere in a skeletal muscle is decreasing, the A. total length of the I band minus the length of the H zone is dec

Physiological adaptaion, what are the physiological adaptation shown my pre...

what are the physiological adaptation shown my prey as defence

What are some examples of biological activities, Q. What are some examples ...

Q. What are some examples of biological activities in which osmosis plays an significant role? Hemolysis destruction of red blood cells by entrance of water, the hydric regulat

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd