Define evolution of virulence, Biology

Assignment Help:

Define Evolution of virulence?

Diseases like cholera emerge as sudden outbreaks, showing marked variation via space and time both in their incidence--the number of individuals infected in a population--and in their virulence--the damage a pathogen does to its victim in the course of implementation its life cycle by replicating and infecting other hosts. Epidemiologists have long studied how frequency of viral, bacterial, and metazoan parasites can fluctuate in response to modifications in infectiousness and transmission which are in turn driven by social, economic, and medical trends. More currently, they have begun to appreciate that virulence is as well dynamic, evolving fast in response to similar factors that drive pathogen numbers.


Related Discussions:- Define evolution of virulence

Name two foods which are a good source of this vitamin, a) Which vitamin he...

a) Which vitamin helps to maintain resistance to infectious diseases? b) Name two foods which are a good source of this vitamin.   a) Vitamin A (retinol) helps m

Explain the primary stain - ziehl-neelsen method, Explain the Primary Stain...

Explain the Primary Stain - Ziehl-Neelsen Method? Ordinary aqueous stains like methylene blue, crystal violet, etc. are not able to stain most of the species of Mycobacteria. C

Thermodynamics and energy, Thermodynamics and Energy 2 types of en...

Thermodynamics and Energy 2 types of energy (kinetic and potential) Work is the transfer of energy from one place to another Energy isn't lost, only converted è fi

Explain about myocardial infarction, Q. Explain about Myocardial Infarction...

Q. Explain about Myocardial Infarction? It is an initial acute phase of cardiovascular disease caused by the blockage of a coronary artery supplying blood to the. Heart shows t

What substance is the acidic flavor of fermented milk due, Q. To what subst...

Q. To what substance is the acidic flavor of fermented milk due? Some bacteria ferment milk lactose by lactic fermentation producing lactic acid this product is responsible for

What is facial prosthesis, Q. What is facial prosthesis? Dental implant...

Q. What is facial prosthesis? Dental implants have prosthesis also been used for facial prosthesis which includes nasal, orbital or auricular prosthesis. Implant and bar retain

Determine about the adequacy of children''s food, Determine the Adequacy of...

Determine the Adequacy of children's food? Adequacy of children's food and nutrient intake depends on: Sibling company Peer pressure Model set by parents and

Describe the plasma membrane of the beta-islet cell, Insulin binding to ins...

Insulin binding to insulin receptors in the plasma membrane of a A. liver cell will lead to an enhance in the intracellular amounts of cAMP in the liver cell. B. beta-islet

What is a species?, What is a species? The species is a set of living b...

What is a species? The species is a set of living beings able to cross among themselves generating fertile offspring. This concept though does not apply to individuals of ex

Define functions of copper, Define Functions of Copper? Copper serves a...

Define Functions of Copper? Copper serves as a co-factor, as well as, an allosteric component of enzymes. In many enzymes copper functions as an intermediate in electrno transf

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