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

Explain types of dietary adaptations for trerapieutic needs, Types of dieta...

Types of dietary adaptations for trerapieutic needs Normal nutrition is the foundation upon which therapeutic modifications are based. We  have already discussed  in  previous

Neurotransmitters to neuromuscular junctions, Blood functions to maintain h...

Blood functions to maintain homeostasis in the human body through all but which of the following: Answer moving carbon dioxide away from cells following completion of aerobic metab

What are homologous chromosomes, What are homologous chromosomes? Which are...

What are homologous chromosomes? Which are the human cells that do not have homologous chromosomes? Chromosomes have genes (genetic information in the form of nucleotide sequen

Define requirements of chromium, Define Requirements of Chromium? There...

Define Requirements of Chromium? There is no Recommended Dietary Allowance (RDA) for chromium but adequate intakes that can be used as a goal for individual intakes has been pr

Bacterial diseases-actinomyces, Actinomyces Members of the genus Actin...

Actinomyces Members of the genus Actinomyces are facultative anerobic, gram-positive, non acid-fast, non-spore forming, nonhaemolytic rods. All Actinomyces require rich media

Use mathematical calculations to justify the answer, Using an average wavel...

Using an average wavelength of 450 nm (0.45 um) can you resolve two objects that sit greater than 200nm apart from one another? Use mathematical calculations to justify your answer

Explain the drug effects on absorption of nutrients, Explain the Drug Effec...

Explain the Drug Effects on Absorption of Nutrients? Many drugs can impair, prevent or reduce absorption of nutrients due to: Formation of insoluble complexes: many drugs

Digestive system in planarias, Q. How are nutrients distributed through the...

Q. How are nutrients distributed through the digestive system in planarias? Planarias have single opening digestive system incomplete with ramifications that transport nutrient

Define functions of pyridoxine, Define Functions of Pyridoxine? There a...

Define Functions of Pyridoxine? There are three different forms of vitamin B6, namely pyridoxine, pyridoxarnine, and pyridoxal. All three must be phosphorylated and the 5'-phos

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