What is the virus that causes flu, Biology

Assignment Help:

What is the virus that causes flu? Why doesn't the body create permanent immunity against that virus? How does the vaccine against flu work?

Flu is a disease caused by the influenza virus, a highly mutant DNA virus. Because of the high mutation rate of the virus, that forms many dissimilar strains, flu always presents epidemic features in affected populations and people may have some flu episodes during life (the immune response made from previous infections is not efficient in future infections).

The vaccine against flu is a vaccine made of attenuated virus of three dissimilar strains. Each year the WHO (World Health Organization) researches and determines which are the strains that should compose the vaccine. This is a method to face the high mutation rate of the virus.

 


Related Discussions:- What is the virus that causes flu

How do contraceptive pills generally work, How do contraceptive pills gener...

How do contraceptive pills generally work? Contraceptive pills generally have the hormones estrogen and progesterone. If taken daily from the 4th day after menses the abnormal

Delimitation and limitation, Delimitation and Limitation: There may  b...

Delimitation and Limitation: There may  be many  aspects of the problem that need  to be  explored, but  it  is difficult to  cover all aspects in  a single research study bec

Segmentation - metazoa, Segmentation - Metazoa Segmentation or metamer...

Segmentation - Metazoa Segmentation or metamerism is the division of the body into smaller transverse compartments along the anterior-posterior axis. Segmentation is widesprea

Centrolecithal egg, which type of cleavage takes place in centrolecithal eg...

which type of cleavage takes place in centrolecithal egg

Explain the food applications of guar, Explain the Food Applications of gua...

Explain the Food Applications of guar Guar imparts smoothness to ice cream by promoting small ice crystals during the freezing process. Guar gum in the dressing of cot

Explain root amputation, Explain the Root amputation, Hemisectioning and Bi...

Explain the Root amputation, Hemisectioning and Bicuspidization Root amputation: removal of one or more roots of a multirooted tooth "upper teeth". Hemisectioning: surgic

Types of ovules, Types of Ovules Anatropous This is the most com...

Types of Ovules Anatropous This is the most common type of ovule in angiosperms in which the ovule undergoes curvature such that the micropylar end comes to lie parallel

Systems of classification plants, Q. Can you show the Systems of classifica...

Q. Can you show the Systems of classification plants? The development of angiosperm classification has been one of the most fascinating subject. A study of sequential events le

Basic physical concepts of plant water relation, Basic Physical Concepts of...

Basic Physical Concepts of Plant Water Relation The main idea of this section is to explain the concept of chemical potential of water or water potential and the effect of var

Define the activation of an agonist during movement, Explain the relationsh...

Explain the relationship between an agonist muscle and its antagonist as it relates to positional control, functional movement and neuromuscular activation. For example, how the th

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