Define historical example of virulence, Biology

Assignment Help:

Define Historical example of virulence?

The "classical dogma" of epidemiologists was that pathogens all the time evolve in the direction of lower virulence, eventually becoming harmless symbionts. Evolutionary models have led epidemiologists to abandon this easy assumption, replacing it with a much richer view that incorporates the effects of within- host competition, tradeoffs among transmission and virulence, and coevolution between pathogen offenses and host defenses. The tradeoff theory, that focuses on the pathogen's trade off among maximizing its replication and preserving its host's viability, has strongly suggested that public health experts can manage the virulence also the incidence of disease by taking actions that lower transmission rates and shift transmission to less damaging modes, such as from water-borne to direct contact. Easy mathematical models have been necessary in formulating and understanding the conclusions of the tradeoff theory.


Related Discussions:- Define historical example of virulence

What is the charge on the tripeptide, Answer the following eight questions ...

Answer the following eight questions (a through h) based upon a tripeptide sequence of the following amino acids (one-letter codes are given): S (serine) P (proline) K (lysine)

Factors influencing the supply of health care, Normal 0 false ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

How are artificial and natural pearls created, Q. How are artificial and na...

Q. How are artificial and natural pearls created? Pearls are made from small strange particles that deposit between the mantle and the shell of the oyster. These particles trig

Illustrate the conductance of potassium channels, A decrease in parasympath...

A decrease in parasympathetic discharge to the heart leads to A. an increase in the conductance of F-channels in SA node cells. B. a decrease in the conductance of potassium

Lysosomes, Lysosomes Lysosomes are small vesicles which are bounded ...

Lysosomes Lysosomes are small vesicles which are bounded by a single membrane & contain hydrolytic enzymes in the form of minute crystalline or semi crystalline granules of

What is the predicted cell morphology, What are the predicted cell morpholo...

What are the predicted cell morphology, cell arrangement and gram stain results for each of the follow? 1. Bacillus megaterium 2. Staphylococcus aureus 3. Serratia marcesc

Clonning, write a note on clonning

write a note on clonning

Rinderpest, R in d e rp es t It is also known as cattle plague re...

R in d e rp es t It is also known as cattle plague resulting in high fever, diarrhoea and high mortality rates. In year 2006, OIE has declared that India is free from rin

Define maternal dietary intake and foetal outcome, Define Maternal Dietary ...

Define Maternal Dietary Intake and Foetal Outcome? Among the various nutrients, energy intake appears to be the most crucial, for developing countries. Studies from India have

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